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Holley Sniper EFI Master Kit with Black Finish

Holley 550-511K

510-550-511K

made in usa
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Holley Sniper EFI Master Kit with Black Finish $1,249.95
Sniper EFI Master Kit
  • Sniper Self-Tuning Black Throttle Body
  • 3.5" Touch Screen
  • Fuel System Kit

  • Holley 550-511K Details

    EFI Self-Tuning Kits

     

    Features:

    • Bolt on carburetor replacement (designed to fit single & dual carb manifolds)
    • Throttle body mounted ECU - no extra boxes to mount
    • Supports up to 650hp
    • 4 wire vehicle connection (Battery +, Battery - , Switched Ignition & RPM)
    • Includes complete fuel system consisting of; 20ft of 3/8" Vapor Guard Fuel Hose, 12-920 Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank.
    • Integrated fuel pressure regulator
    • Integrated ignition timing control & coil driver
    • Color touchscreen for setup and gauge views
    • Calibration Wizard NO laptop required for this self-tuning ECU
    • The included Wideband Oxygen Sensor provides real-time fuel map learn.

    Note: If using a Holley Dual Sync distributor, adapter harness p/n 510-558-493 is required to connect to the Sniper EFI.

    Specifications:

    Manufacturer's Part Number:
    550-511K

    The Holley Sniper EFI Self-Tuning Kits feature all the benefits of EFI, a perfect option for street cars, muscle cars and off road vehicles. Eliminate typical carburetor cold starting issues, hesitations, flooding and vapor lock. Sniper EFI four fuel injector kits can support up to 650HP. The Self-Tuning ECU makes it an easy, no hassle way to get the most performance out of your vehicle without a laptop computer. With available shiny, black ceramic, or classic bronze throttle body finishes, the Sniper EFI kit also brings style under the hood.

     JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    550-511K is rated 5.0 out of 5 by 4.
    Rated 5 out of 5 by from EASY!! Very easy to install. I put this on a 454 in my offroad Jeep and it gives me everything I want out of the motor. Instant start ups and throttle response. Runs off the coil on the HEI. clean wiring too.
    Date published: 2018-03-21
    Rated 5 out of 5 by from LOVE IT MY 72 CHEVELLE HAD FEED AND RETURN LINES AND VENTED. THEREFORE INSTALL WAS QUITE EASY. ONLY COMPLANT WAS THE GEOMETRY OF THE LINKAGE WAS MUCH DIFFERENT THAN A HOLLY CARB. THEREFORE HAD TO PURCHASE AN ADJUSTABLE THROTTLE BRACKET TO SHORTEN THE CABLE TO WOT. OTHERWISE LOVE THE LOOK! REALLY WOKE UP MY 550 HP 468. SMOOTH ACCELERATION.
    Date published: 2017-11-11
    Rated 5 out of 5 by from Actually canceled the order. The delivery date got pushed out to 9 weeks. During which time I began doing research on LS ENGINE SWAPS. I then decided to do a swap and canceled my order. Will probably get the Holley install kit for the LS ENGINE and 4L60 E set up.
    Date published: 2017-06-26
    Rated 5 out of 5 by from This kit has everything you need and then some. After install I followed the directions on the handheld computer. Once finished the fuel pump started going and then hit the key and it started. Drove around for a bit with no issues. Now just waiting for a download for the turbo to really open it up.
    Date published: 2017-03-20
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    Will this work on my stock 84 mustang GT it has a holly 4bbl

    Asked by: 84mustangman
    Yes, this will work on your Mustang GT.
    Answered by: Rusty B
    Date published: 2018-06-07

    I am using an msd distributor and msd box. Would this work with it?

    Asked by: Trent Bishop
    Yes, this will work with your MSD ignition.
    Answered by: Rusty B
    Date published: 2018-06-04

    I want to put this on a 84 k10, and was look at the sniper kit with the fuel kit included, doesn’t have a vacuum distributer, and is a California emmisions truck, what exactly do i need?

    Asked by: Kyle520
    This will work in your application, but is not CARB approved for use in California. A vacuum distributor will give better response and fuel mileage on a street driven vehicle.
    Answered by: Rusty B
    Date published: 2018-04-04

    Will this product work on a 5.7 V8 1994 GMC Sierra?

    Asked by: CGS0331
    This is not compatible with your stock components. It is meant to replace a carburetor on a 4-barrel intake in an older application.
    Answered by: Matt_B
    Date published: 2018-03-24

    Is there a way to make this work with a duel tank fuel system on an 80s chevy pickup?

    Asked by: Gregsc
    You will have to use 2 fuel pumps and switch between them.
    Answered by: Rusty B
    Date published: 2018-03-09

    will this work on my stock 72 chevy k20 cast iron intake manifold.Has the stock Rochester 750 quadrajet on it atm mid 80s 350 engine

    Asked by: stock72k20
    You will want to use a carburetor adapter to a 4 bbl square flange. http://www.jegs.com/i/JEGS-Performance-Products/555/15440/10002/-1
    Answered by: Rusty B
    Date published: 2018-03-08

    I want to put this on my stock Pontiac 400.  Will I be able to run duel electric fans with it, will I be able to to run an A/C clutch with it, and does it require a return line?

    Asked by: Dbenson3
    This should not affect the electronic switches you have in place to run your accessories. It does require a return line and it is included in the kit.
    Answered by: Rusty B
    Date published: 2018-03-01

    I am looking at putting this on a '67 Thunderbird with the 390. Totally stock besides for a lumpy street cam, an aluminum intake and a full MSD ignition system. Would I need to change anything or buy additional parts to make this work for my car? Thanks!

    Asked by: Thunderturd_67
    As long as you have a 4 bbl intake this kit will work well for your application. You will need to supply a return line for the fuel system.
    Answered by: Rusty B
    Date published: 2018-02-27
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    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations