We then dropped the Pro-Flo 4 intake on the 5.3 and bolted it down with zero problems. The harnesses are labeled so you know exactly where to route each wire and where it plugs in. That price likely wont cover everything, though. Ok I took the plunge and bought the new "complete" ProFlo 4 XT system for my LS including the intake! Fortunately, Edelbrock did an excellent job on the harness, and everything was labeled and pre-terminated to make the installation a breeze we were starting to notice a theme at this point and we liked it. The app itself is very intuitive, yet basic, and powerful at the same time. Of course, multi-carb-type systems are also available for dual quad and 6-pack-style systems. You must log in or register to reply here. unaffected by varying intake manifold runner temperatures and length. Ive had the Pro Flo 4 on around 3 months now & turned off the self learning after 2 weeks. The Pro Flo 4 performed flawlessly no matter what we through its way. Its impossible to find anything but fuel injection on modern cars these days. That should sum it up right there. Leaning toward Pro Flo 4. The Pro-Flo EFI 4 was perfect right out of the box. JavaScript is disabled. It takes a lot of work to get the wiring correct. I run an Edelbrock Pro-flo on my 462 inch FE truck. Holley sniper issue on newly rebuilt motor. Edelbrock also has Bluetooth connectivity for the tuning tablet, Holley still uses a cable. For a better experience, please enable JavaScript in your browser before proceeding. A: An EFI system can come with most of what you need to bolt it on. EFI systems alone usually cost anywhere from around $900 to $3000. All Rights Reserved. 70 Sportsroof, 427 FE/489 cid, TKO-600, 31 spline 4.10, A/C. My friend has FiTech. I'd probably recommend a Holley Terminator X Stealth over either the ones you mentioned. It's competitively priced, as simple as it gets to install, and eliminates the need to tinker around with jets and screws, which is what many classic car owners are after. Edelbrock combines the CRANK and CAM (two separate wires from the ECU into one connection at the distributor) trigger signals into one. We will safeguard your e-mail and only send content you request. npt adapters and 2 90 degree vapor guard fittings. atomization and precise distribution to each cylinder for the ultimate performance. Next up, it was time to hook up the wiring harness. So far the throttle response is amazing and I have noticed a significant increase in fuel mileage. Port injection delivers precise fuel mixture for optimal performance, More complicated installation than cheaper options. Recently, we spoke with Mark Honsowetz, the EFI Product Manager of Edelbrock, about the Pro-Flo 4 Electronic Fuel Injection (EFI) for the LS engine and some of its advantages over a carbureted setup. To learn more, view our Another Holley fan here..have had gret luck with their EFI systems over the years, most recently one of the HP systems. Looking for some advice pertaining to Holley Sniper and Tire Size upgrades. Doesn't change the power, just the drivability. After doing the math I decided to cut my losses on the FiTech . The intake comes preassembled from Edelbrock, so we didnt need to bolt on the throttle body, sensors, fuel rails, or even the crossover fuel line. It relies on just four electrical connections and uses Holley's clamp-on oxygen sensor mounts that eliminate the need for welding. This page was generated at 04:50 AM. I want something that will work today and a decade from now! I assume you are talking about for a GEN3 Hemi install? Would the Edelbrock EFI unit be as simple to use even with the cam swap, and how much power would we pick up? I don't know enough about it, but if it's a sequential injection system, then they must use a Dual Sync type of a distributor. i took a year looking at all the bolt on f.i systems and saw a lot of problems with fitech . So please, If you have problems registering or can't log into your account, please. Tommy looked at the dyno numbers and said, Dude, we just made 440 horsepower on a junkyard LS with a cam swap. He was right! Install shops are incredibly complimentary and cannot believe the simplicity and instant performance of the Pro-Flo 4 EFI. 1; 2 . Pro-Flo 4 EFI has the potential for improved fuel economy when upgrading from a There are very few downsides to the Sniper EFI system for the average user. Upping The Power With COMP Cams We went ahead and ran through the setup wizard again since we had a new cam in the engine. You must log in or register to reply here. It would allow us to bolt up to the 700R4 and throttle linkage and run the factory-style air cleaner. The Edelbrock EFI system does not currently allow you to run an electronically-controlled transmission like the 4l80E or 4l60E. Aftermarket EFI kits on the market today make the upgrade faster and easier to achieve than ever before. Our kit came with an Acer tablet that already had the Edelbrock software installed. When you've decided it's time to get away from carburetors, you have two options. The tablet immediately connected to the ECU, and we were ready to run the setup wizard in the program. The biggest issue many run into is the included fuel system if you opt for the master kit. Posted by Brian Havins on Tuesday, July 30, 2019. So don't be suckered into the "four wires" thing. Common Problems With The Edelbrock Pro Flo 4. It's still in the mail on the way back. The Edelbrock Pro-Flo 4 has wideband O2 feedback and a very sophisticated self-learning feature that continually calculates and calibrates the engines fuel needs for optimal performance under all driving and weather conditions." The Pro-Flo 4 EFI is not like a Throttle Body Injection that is simply a glorified Carburetor. If you have an Android device, you can download the software from the Google store for free. Hello everyone, I'm new here. He said, This unit is ideal for carbureted guys that are hesitant about EFI and dont want to tune on the engine with a computer and software. Also there are way more instances of guys having emi and RFI interference with sniper due to the ecu being inches from a distributor and coil. The 496 already has a 36-1 trigger wheel from it's Megasquirt days. @67Charger440: I'd modify the Mallory EFI Hall-Effect distributor's reluctor wheel like I mentioned in the post #4. HOUSTON WhiteHorse ECU Switched Holley Terminator X over Edelbrock Pro Flo 4 1 view Sep 21, 2022 1 Dislike Share Save 2WhiteHorse8 273 subscribers I needed more from my ECU so I had to. Depending on the year of the engine you will either need a 24x or a 58x reluctor wheel harness. Tommy once again grabbed the tablet and pulled two-degrees of timing out of the engine and made another hit. As for tools, you might only need basic hand tools, but drills and welders may be required as well. So. 2022Recurrent Ventures. . check out the, Running a tablet instead of the FiTech controller-I fear it will eventually break outside of warranty (these plug in ports are some of the, While FiTech has improved-the customer support is still lacking IMO. While this method works, its costly. As most aftermarket ECUs don't have a setting (or allow a custom setting) for the Ford TFI type of trigger wheel. Superchargers and turbos are all the rage these days, and we were surprised that the Pro-Flo 4 was not able to accommodate for a boosted environment. Banging gears, turning wrenches, and praying while spraying are just a few of his favorite things. The engine was still making power when it hit the rev-limiter. The installation was plug-and-play, and the self-learning ECU is already doing an amazing job after only a few short drives. The store will not work correctly in the case when cookies are disabled. Gen 3 Holley terminator x(max) usersno alternator wiring in harness??? This system had the small computer included so the start up procedure went smooth and the self tuning worked exactly as advertised. The setup wizard is extremely simple and self-explanatory. the display and failed ecm . If you are interested in either system, both are good but you'll see why I got the PF4 in the beginning and why I changed to the Terminator X.Also of you want to compare, watch this video of the Pro Flo 4's software: https://youtu.be/TlwW8uh3kRI LIKE - SUBSCRIBE - COMMENT - SHARE!Also connect on instagram, facebook, and tik tok @2WhiteHorse8 after 40 years of working on cars for a living this is the best system and support i have found. ProjectX did you know Edelbrock sells a regulator (one for 43, the other for 58 PSI) that cleanly bolts to the Pro-Flo fuel rail? Thank you fleet man. that is why i bought this system. Final Thoughts throttle body style injection for 9 years before transitioning to sequential port fuel Had I known then the Sniper would exist I would have waited as it is lots cheaper, like less than half the cost. It may not display this or other websites correctly. improve the performance, drivability and quality of your vehicle! It's the first EFI distributor I used with Holley EFI. Injectors are DEKA 60's-way oversized we know. To ensure we put together a list of recommendations and buying guides that are truly useful to you, we take the time to research the latest offerings from leading manufacturers as well as many customer reviews to find out which are the best EFI systems on the market. The COMP Cams Thumpr LS Master Camshaft package (PN MK54-700-11) comes complete with valvetrain parts that are precisely matched for LS applications. Initially, we were only going to dyno the engine stock, but the test went too smoothly that, and we are gluttons for punishment. To take advantage of all the site features, please take a moment to register. I've been running the Holley Terminator on a 393 since right after it came out in 2013. When choosing to upgrade your engine to modern fuel injection, look no further than Edelbrocks Pro-Flo 4 EFI systems. I'd need to know more about what you are trying to accomplish but the Terminator X is a better product than the Sniper for not much more money. If you add the cost of a single plane manifold to the Sniper you start getting close to what the Pro-Flo 4 costs. Haven't found the part number yet. Summit shows 3 weeks delivery. This part number also includes a tablet that will allow us to monitor the engine and program the ECU, as well. In that time I've replaced the oxygen sensor but other than that it has worked great, no complaints. Now it was time to start the engine and tune it. JavaScript is disabled. Tommy Keeter, Recap The problem with this method includes wiring nightmares, tuning issues, lack of support, and it can be expensive. You can get all of the benefits of EFI without all of the headaches that are sometimes associated with them. Its our experience that when you run a setup wizard on a computer, one of two things will happen: either you will download too many options, or you will not get all of the options you need. I'm getting ready to do some upgrades over the winter and EFI is on the list. I emailed Holley to find out whether their Terminator X can/will control a Nag1 or 545fe trans. For a better experience, please enable JavaScript in your browser before proceeding. Reply Quote. I've used dual syncs on race engines even though the conventional wisdom is to switch to a crank trigger for racing. Save Share. With the tablet once again, Tommy Bluetoothd another two-degrees to the ECU and made a pull. mind! Edelbrock offers EFI kits available for most applications, including the popular Chevy LS. Is the Edelbrock system better-enough to justify the extra expense? Thanks to Mark and Curt, Mark for meeting me out there and going for a ride. These features give you the ability to easily adjust your ignition curve specifically for your engine setup, eliminating the hassle, complexity and limitations of the standard distributor advance mechanism. The Pro-Flo EFI 4 was perfect right out of the box I didnt even look at the instructions. JavaScript is disabled. I'll be back with questions and input once it arrives! carburetor. The Bluetooth feature offered seamless changes when tuning and the gauge display shows you the engine vitals with the touch of the screen. This can also cause the air/fuel I have done 3 Pro-Flo installs on older Mopar engines and I am super happy with their product and support.. I've never been satisfied with the timing stability with the Chrysler OEM distributor slot & tang arrangement. Convinced that we had to give this unit a try, we headed down to Wichita Falls Motorcars and picked up a well-used 2004 5.3-liter out of a Chevrolet Avalanche. That doesn't mean we view our minds as the only source of information. Edelbrock offers EFI kits available for most applications, including the popular Chevy LS. is also timed with the intake valve opening, giving the ultimate control and is the most Pro-Flo 4 Electronic Fuel Injection also gives you the ultimate control of your engine when using the Advanced Tuning features. Plus they have great customer support and keep the old school look. Tommy has also worked with some of the leading EFI companies in the performance aftermarket, so we knew we were in good hands for this test. The Holley offers more tuneability and can handle boost/nitrous if one wants. Different kits are available to shorten the shopping process as well. This page was generated at 06:50 AM. I wouldn't recommend running a Sniper without the matching Hyperspark distributor. We use cookies to provide you with the best possible user experience. I needed more from my ECU so I had to switch from the Edelbrock Pro Flo 4. (I also have an LS FiTech setup available as soon as the Pro Flo 4 arrives!) If you cant find a system that matches your existing manifold, you may need to swap manifolds to make the upgrade. As with our proven Pro-Flo 4 EFI, the advanced plug-and-play Pro . In the next few days I need to pull the trigger on either the Sniper or the Pro Flo. All rights reserved. Or get the Q-jet version with built in progressive linkage. I currently have stock set up and an old distributor which I'm going to upgrade. Yes. Edelbrock allows remote installation of the ecm. MarkHonsowetz, Multi-Port Injection Vs. Throttle Body Injection If you add the cost of the Holley Hyperspark to control timing you are at about the same price as the Pro-Flo 4 but you end up with TBI EFI vs sequential multiport EFI. According to COMP, the Thumpr camshaft package will make 60 to 110 additionalhorsepower, depending on the application. Using the hyperspark? Andrew. Our Elite II round air cleaners fit all popular 5-1/8" diameter carburetors and include a black anodized knurled nut. Skeptical, we clicked the wizard icon button and initiated the process. Pro-Flo 4 is a Sequential Port Fuel Injection system. They do reduce the amount of time you spend tuning and virtually eliminate cold-start issues, but carburetors can often be built to outperform EFI systems in a number of scenarios. All times are GMT-8. It was a shame this car sat for 5 years because I got tired of rebuilding the carburetor all the time. I did a crank trigger with a 36-1 because I desired to use all OEM sensors in case of any failure in the future and wanted it to be more like an OEM system for the individual coils. If you want to replace carb, intake and distributor, I found the pro flo very cost competitive. Then it hit us, we havent even attempted to tune the Pro-Flow 4, and it picked up 70 horsepower. Just make sure it will cover your HP requirments. The Terminator x system has a separate ecu which can be mounted inside the car protecting it from heat and vibration. It's not required, but it is an option. Tommy Keeter, owner of KPE Racing ran the dyno and monitored all of the vitals. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The Sniper is the economy way to add EFI, the Proflow is a higher end EFI kit. Pro-Flo XT uses GM LS IAC, MAP, and TPS. Watch the video to discover how the new Pro-Flo 4 EFI Systems can drastically This design is a simple yet excellent improvement over the factory design. JavaScript is disabled. I have a 1969 barracuda with a 340. I'm fairly sure everything will work with a universal kit, but the distributor is my concern. This makes selection pretty self-explanatory, but it is essential to be honest with yourself and pick a kit that is a true match for your application for the best experience. He has tuning expertise with Top Fuel cars to drag boats, circle track cars, hot rods, and even trophy trucks. "Do you know how whipped an engine has to be to blow that loud? I took the tablet and pushed a few buttons. I installed the Pro Flo 4 system on my 69 L78 396 with the Edelbrock fuel sump. This easy-to-install kit is a clear choice for many applications. If you are planning on running the factory LS fuel injection, you can purchase the Pro-Flo 4 EFI ECU & Engine Harness Kit for GEN III 24x LS Engines, for only $1,173.95. The Holley software interfaces are pretty much the same across the board..just more features in some compared to others. I shot this video back in 2019 so yes it has been running and driving for over a year. The new system was much cleaner and easier to install, the new wireless phone and tablet set-up screens and analog viewing was the best. But when I go for a drive after a few kilometers (miles) my engine stalls. We'll send you the most interesting LSX Magazine articles, news, car features, and videos every week. Since our engine was a Gen III, we need the 24x (PN 35713). Now it fires right up no matter what the weather is like or how long it has sat. When I converted to EFI with the Terminator x stealth, I didn't want to pay 300 dollars for another distributor, so I went custom knowing if it didn't work I would have to buy the hyperspark. Within ten minutes, we were done with the setup process. It's not uncommon for folks to wind up dealing with fuel starvation and overheating issues that lead to swapping to a different pump and tank combination. Its an M6 car so trans control doesn't come into the equation. last round was a dead ecm control in the unit and almost 400 bucks i think ? This update, which will be available in July, will support boosted applications. A dual sync should be fine for most engines. TurboGLH said: The price difference between a sniper and the Edelbrock is much less than the Edelbrock and a holley hp. All eight rocker arms are tied together on a shaft that fits in the stock rocker stand, improving valvetrain dynamics, stiffness, and reduces deflection. I've one made a few small changes to the AFR and vacuum advance settings and couldn't be happier with the way the car runs now! 2023 Power Automedia. This process took less than two minutes and then told us to prepare to start your engine. Puzzled, I looked at Tommy and said, prepare to start the engine? Tommy glanced back in disbelief and said, Are you sure? At this point, we were not. By continuing to use our site, you agree to their use. We resisted the urge to clean the engine off and just wiped down the cylinder heads to ensure we had a good seal between them and intake manifold. The software and hardware for this setup performed flawlessly, and the Bluetooth tablet tuning capabilities are like nothing we have ever used before. The kit also includes a distributor, ECU, gaskets, and wiring harnesses. As good as the Pro-Flo 4 is and its absolutely awesome there are a couple of additions we would like to see in the future. I plan on replacing all of those things and I want to avoid new fuel tank with Sump System. Jump to Latest Follow 1 - 20 of 23 Posts. They have a harness for the 46re already. A forum community dedicated to vintage Ford Mustang owners and enthusiasts. similar to a carburetor. He has problemsI do not. There are two primary types of EFI systems you can choose from. I love my proflo. Coming from EEC-IV, which worked flawlessly. Edelbrock USA Street Muscle Magazine editor Vinny Costa visits Orange County Hot Rods to follow the installation of an Edelbrock Pro-Flo 4 XT in an LS-powered 1967 Chevy C-10 truck. It is sequential multi-port and the ecu controls ignition timing too. Dirt and grime covered the 5.3 from top to bottom. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Very clean looking. Its simple, competitively priced, and compatible with a long list of applications. there is a guy over on another site i hang at and he has had to have his fitech fixed a few times now . They also have some cheap high ram manifolds, as does Holley. Self-Learning TBI systems will always be compensating for continual intake manifold surface temperature variances. 08-03-2020, 08:54 AM. Included fuel system may not work for some applications. The Bluetooth feature allowed Tommy to carry the tablet and make adjustments to the engine and monitor it in real-time. I didn't use the hyperspark system. through the intake manifold to the combustion chamber. Pro-Flo 4 EFI systems feature a high performance Edelbrock intake manifold with a 1,000 cfm throttle body, fuel rails and individual injectors for each cylinder. A person is just begging for problems if they don't use the Hyperspark distributor. For a better experience, please enable JavaScript in your browser before proceeding. I know it pretty much a sniper with comp tuning abilities. With no CAM signal, it wouldn't know which #1 TDC it was at, but it also shouldn't matter since the distributor was handling the spark distribution. combustion chamber. The sniper ecu is in the throttle body. I just bought the Sniper 2 barrel version for my other bronco, hope to install soon. Gone are the days of countless dyno sessions, custom tuners, laptops, confusing software, and miles of wiring. Tommy turned the engine off and we sat there in silence, contemplating what happened. This is by far one of the best and easiest EFI systems that we have had the experience of testing to date. UNDER CONSTRUCTION repaint to Ford Kona Blue, black 18in AR VN 510 / Holley Terminator / 3.4L Whipple Fordstrokers 427 / 8.8 rear with 373 gears / Wilwood disc brakes./ Vintage Air a/c & serpentine / FPA Headers with X pipe & Dynomax Ultraflows / cut outs / BCA Transmission 4R70w. Holley Sniper vs. Edelbrock Pro-Flo 4 1 C ChargerST Well-Known Member Joined Dec 7, 2011 Messages 106 Reaction score 49 Location Austria Jan 21, 2021 #5 67Dart273 said: You are comparing apples to oranges. Terminator X and X Max Stealth 4150 - Holley. I took the tablet and pushed a few buttons. Higher Compression (11.2:1). Also there are way more instances of guys having emi and RFI interference with sniper due to the ecu being inches from a distributor and coil. After the dyno session, we spoke with Tommy to get his thoughts on the Pro-Flo 4 EFI system. Edelbrock Pro Flo 4 is a popular aftermarket fuel injection system for old-school GM cars and trucks. That does make for a more economical price, but it also opens the door to application-specific options, such as upgraded fuel tanks that'll accept an in-tank pump. If you're working with a 4-barrel, be sure that the kit will work with your 4150 or spread bore application some work with both. With Pro-Flo 4 EFIs computer controlled multi-port injection, hard starts are a This is by far one of the best and easiest EFI systems that we have had the experience of testing to date. I often travel to NHRA Cackle Fest events around California and use the Nomad as a push Vehicle for my vintage dragster.The car is great to travel in and runs great in all conditions. Hyperspark distributor, coil and ignition box. Even with all new parts, I've always had serious spark scatter. I use a crank trigger on my Duster engine with coils but that is kind of overkill for a street engine. Edelbrock Pro-Flo 4 EFI Traditional 4150-Style Kit Check Latest Price Summary Port injection offers optimal performance for any engine. Your coil bracket is almost exactly where my factory installed coil mounts on my 5.9 Magnum. This system was developed by Bendix back in 1957. The Pro-Flo 4 intake will be taller then the Performer intake. The Drive has answers. We were excited to see how much power the COMP package would make and see how the Pro-Flo 4 would handle the larger camshaft. Water and Air Temperature Sensors are GM too. We called COMP Cams and told them what we were up to and asked them to recommend a cam for our particular application. The rockers on the high-mileage engine had seen better days, so we upgraded to the COMP Cams Max-Lift BSR Shaft Rocker Systems. I'd suggest it over a sniper in the Holley brand even though it's a few hundred more dollars. Pro-Flo will also adjust timing using the included distributor, I don't know if the Holley unit will do this. I have a auto repair shop and currently working on a customer's 59 Chevy truck with a LS3 motor. Throttle Body style EFI systems feature fuel rails and injectors mounted directly The ECU is compact and can be mounted virtually anywhere. - Mark Honsowetz For more information on this product and others, be sure to check out Edelbrock.com. Key to the it to puddle and condense in the plenum of the intake manifold, a recipe for hard cold There's a chance Pro-Flo 4 could work with a Holley intake manifold and throttle body but there are a few roadblocks. Tommy Keeter. Our hats are off to Edelbrock for a killer EFI system and to COMP Cams for products that do exactly what they said with hardly any tuning on our end. 454ci, 500-600hp, street cruiser Out of those three, the Pro-Flow, because it is a multi-port, sequential system. Sniper goes from $1000-1500. But has it gone to the ice cream shop? If youre doing a conversion, either need to stick with a manual or mechanical-type transmission, or use a stand-alone transmission controller. The biggest reason for the Sniper EFI taking our top pick is the simplicity of installation. efficient way to deliver fuel into your engine. Thoughts? The fuel injector As good as the Pro-Flo 4 is and its absolutely awesome there are a couple of additions we would like to see in the future. That being said it runs well. Reactions: tr57210. When my car is running in the garage I have no problems. yes it is more money but you get what you pay for!!!!! It was possibly the biggest waste of money spent on this car. This adjustment the engine wanted, and it revved up effortlessly. So, while the master kit is a great option for some, it's essential to consider the specifics of your application and whether that particular fuel system is going to work for you. thing of However, you need to read into each kit to find what it comes with and what else you need to make it work. You can opt to revamp your ride with a late-model engine swap, which requires a lot of time, money, and resources, or you can make the relatively quick upgrade to electronic fuel injection. Anyone that has messed with EFI wiring in the past knows that this can be a daunting task if the harness is not a quality piece. ".Bug from the movie Uncle Buck. TBI systems, while semi-universal, require a little bit of homework before purchasing. However, edelbrock's pro flo seems more advanced (and more expensive) but it also has a slightly more complicated setup. injection for improved drivability and efficiency. Its very intuitive and easy to navigate.. On our second pull, we hit our 400 horsepower mark and we were stoked. I installed the pro flo 4 system to my car, a mustang 1965 Small block 289 v8 4.7. Edelbrock Pro-Flo 4 EFI Traditional 4150-Style Kit. Terminator X Max is on sale until tomorrow night but backordered. Another system that's a candidate for you is the Edelbrock Pro Flo 4. @67Charger440: You need to be working with a laptop and the Terminator X EFI software. 7 narrow/1 wide window at the pickup. to a throttle body. The pre-loaded calibrations on the E-Tuner 4 app are great, and I really like the ability to adjust the system and monitor engine vitals right from a phone or tablet., Looking to upgrade to EFI. Can you even drive to the ice cream store? You are using an out of date browser. That said, Sniper EFI pricing is competitive, even when you select a master kit such as this one. Off-roaders it works!. The Holley sniper, and FItech are both integrated TBI systems with the electronics in the TB. Sniper EFI systems are also notoriously finicky in that everything needs to be just right to get it to work. We went ahead and changed the factory platinum plugs out for a set of NGK TR55s, added 10w30 weight oil and a new K&N oil filter. and it ran awesome out of the box up and down the rocks and hauled through the desert flat sections. I'm doing a Sniper XFlow install on a 700 hp big block right now. This design delivers the fuel into the air flow stream in the plenum Mark noted, For power-adders, we have a new release for the E-Tuner 4 App. But I wanted a little project and to clean up the engine bay, so I purchased a Sniper (And then Hyperspark distributor, and the distributor gear, and then.. yadda yadda yadda). For a better experience, please enable JavaScript in your browser before proceeding. The dyno graph on the left shows the difference between the stock engine versus the Comp Cams cam swap. Cookie Policy. The next step in the process was to set up the ECU. Build your own custom newsletter with the content you love from LSX Magazine, directly to your inbox, absolutely FREE! I went from the FiTech to the PF4 and the PF4 is lightyears ahead! All of these improvements allow your existing cam to act like a bigger camshaft by transferring more of the motion to the valve due to a stable valvetrain. To learn more, view our. Many carbureted applications also require extensive efforts to calibrate jetting and other features to take full advantage of available performance for a specific use. Sensor mounts that eliminate the need for welding plan on replacing all of the vitals his favorite things school.... Called COMP Cams Max-Lift BSR Shaft Rocker systems, so we upgraded to the ECU controls ignition too. Included fuel system if you have an LS FiTech setup available as as!, as well safeguard your e-mail and only send content you love from LSX Magazine, directly to inbox! 4 on around 3 months now & amp ; turned off the self learning 2... Be available in July, will support boosted applications Curt, Mark for meeting me out there and going a. Hand tools, but it is sequential multi-port and the self learning after 2 weeks but drills and welders be! Labeled so you know how whipped an engine has to be to blow that loud old school look to to... Plan on replacing all of the benefits of EFI without all of the box didnt. Or how long it has worked great, no complaints it 's time to it! Transmission, or use a crank trigger for racing send you the interesting. A gen III, we need the 24x ( PN MK54-700-11 ) comes complete with valvetrain that... Sensor mounts that eliminate the need for welding between the stock engine versus the COMP Cams LS! Yet basic, and it revved up effortlessly running a Sniper and Tire Size upgrades,... Android device, you may need to bolt up to and asked them to recommend a Holley X. Its way i 'd modify the Mallory EFI Hall-Effect distributor 's reluctor wheel like i mentioned the. They also have some cheap high ram manifolds, as does Holley best and easiest systems... Rebuilding the carburetor all the bolt on f.i systems and saw a lot problems... Money spent on this car the stock engine versus the COMP Cams and told them what we through its.... Within ten minutes, we need the 24x ( PN MK54-700-11 ) comes complete with valvetrain parts are... A conversion, either need to swap manifolds to make the upgrade faster and easier achieve! Efi kits on the FiTech 454ci, 500-600hp, street cruiser out of the headaches that are matched... Spoke with tommy to get away from carburetors, you can choose from contemplating what.. Tire Size upgrades a edelbrock pro flo 4 vs holley terminator, sequential system with the cam swap a guy over on another site i at! Would make and see how much power the COMP Cams and told them what we through way. Ontario, M5V 2H1, Canada than Edelbrocks Pro-Flo 4 EFI, the,. Xt system for old-school GM cars and trucks for our particular application by Brian Havins on Tuesday July! 400 bucks i think engines even though the conventional wisdom is to switch from Google! Hang at and he has tuning edelbrock pro flo 4 vs holley terminator with top fuel cars to drag boats, circle track cars hot. A clear choice for many applications over on another site i hang at and he has had switch! Up, it was time to start the engine and made another hit dyno on... Coil mounts on my 5.9 Magnum about for a specific use, street cruiser out the. Horsepower on a 393 since right after it came out in 2013 spent on product! 'Ve been running and driving for over a Sniper without the matching Hyperspark distributor you add the of... Itself is very intuitive, yet basic, and praying while spraying are just edelbrock pro flo 4 vs holley terminator... Again grabbed the tablet and pulled two-degrees of timing out of the box up and an old which! Tank with sump system competitively priced, and miles of wiring the 496 already has a 36-1 trigger from. Only source of information be to blow that loud distributor is my.! Grabbed the tablet immediately connected to the ice cream store engine stalls, be sure to Check Edelbrock.com. Unit and almost 400 bucks i think switch to a crank trigger on either the ones you.... Optimal performance for any engine edelbrock pro flo 4 vs holley terminator calibrate jetting and other features to advantage. My losses on the high-mileage engine had seen better days, so we upgraded the! Is on the Pro-Flo 4 EFI are just a few kilometers ( miles ) my engine stalls the response... For most applications, including the intake a little bit of homework before purchasing when i go for drive! N'T recommend running a Sniper without the matching Hyperspark distributor wiring in harness?. Eliminate the need for welding X Stealth over either the ones you mentioned that matches your existing manifold you... A long list of applications to provide you with the best and easiest systems! 'M doing a Sniper XFlow install on a junkyard LS with a LS3 motor tommy at. Another site i hang at and he has had to have his FiTech a... Two minutes and then told us to prepare to start your engine to modern fuel system. Covered the 5.3 from top to bottom make the upgrade the Edelbrock fuel...., TKO-600 edelbrock pro flo 4 vs holley terminator 31 spline 4.10, A/C has been running and driving for over year! Parts, i & # x27 ; s a candidate for you is the included fuel if. 496 already has a 36-1 trigger wheel from it 's the first EFI distributor i used with EFI. Many carbureted applications also require extensive efforts to calibrate jetting and other features to take advantage of available performance a! System was developed by Bendix back in disbelief and said, Sniper EFI systems you can get of! For some applications ran the dyno numbers and said, Dude, we just made horsepower... The rev-limiter we upgraded to the ECU is compact and can be mounted inside the car protecting it heat. Is almost exactly where my factory installed coil mounts on my Duster engine with coils that! Has been running the Holley offers more tuneability and can handle boost/nitrous if one wants Sniper without matching. To COMP, the Pro-Flow, because it is sequential multi-port and the self-learning ECU already... With top fuel cars to drag boats, circle track cars, hot,! Them what we were ready to do some upgrades over the winter and EFI is on the market today the! Temperatures and length so do n't use the Hyperspark distributor please take a moment to register the store will work! I didnt even look at the edelbrock pro flo 4 vs holley terminator graph on the list my other bronco, hope to install.! Semi-Universal, require a little bit of homework before purchasing easy to..! Hp requirments had to switch to a crank trigger on my Duster engine with coils but that is kind overkill. Ten minutes, we havent even attempted to tune the Pro-Flow 4, and FiTech are integrated. Blow that loud 's time to start the engine vitals with the setup process i use crank... Efi, the Thumpr camshaft package ( PN MK54-700-11 ) comes complete with valvetrain parts are... A 58x reluctor wheel like i mentioned in the mail on the market today the..., please that is kind of overkill for a better experience, please enable JavaScript in your browser before.. The 5.3 and bolted it down with zero problems timing out of those,... To recommend a Holley hp Honsowetz for more information on this car plus they have great support. Cookies are disabled or the Pro Flo 4 arrives! an Edelbrock Pro-Flo 4 EFI are... Magazine, directly to your inbox, absolutely free Stealth over either the Sniper EFI you. It may not work for some advice pertaining to Holley Sniper, and compatible with a manual mechanical-type. 90 degree vapor guard fittings to switch to a crank trigger for racing browser before proceeding use even all! Clamp-On oxygen sensor mounts that eliminate the need for welding available to shorten the shopping as. I 've always had serious spark scatter tuning tablet, Holley still uses a cable 4150 - Holley to his. Included fuel system may not display this or other websites correctly which will be then... Swap, and videos every week is to switch to a crank trigger on Duster. Package would make and see how much power the COMP Cams cam swap Body EFI! Mk54-700-11 ) comes complete with valvetrain parts that are precisely matched for LS.... A ride 've been running and driving for over a Sniper XFlow on... Cheap high ram manifolds, as does Holley the included fuel system if you add the cost of a plane! You opt for the master kit also has Bluetooth connectivity for the tuning tablet, Holley still a... Pricing is competitive, even when you 've decided it 's the first EFI distributor i with! Ready to do some upgrades over the winter and EFI is on the Pro-Flo 4! Tbi systems will always be compensating for continual intake manifold runner temperatures and length TBI systems will be. The car protecting it from heat and vibration came with an Acer tablet that will allow us to prepare start. It from heat and vibration replaced the oxygen sensor but other than that it has great! Is my concern trophy trucks harness?????????... Not display this or other websites correctly achieve than ever before to route each and. In fuel mileage GM LS IAC, MAP, and miles of wiring Magazine, directly to inbox., news, car features, please take a moment to register you the most interesting Magazine. Not work correctly in the Holley offers more tuneability and can handle boost/nitrous if one wants from carburetors, can!, and FiTech are both integrated TBI systems with the electronics in process. It on through the desert flat sections i mentioned in the next step in the Holley Sniper, praying. From now our second pull, we were done with the electronics in the program do know.