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Holley 550-516

Sniper EFI Self-Tuning Kit with Classic Finish

Holley 550-516


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Holley 550-516 Sniper EFI Self-Tuning Kit with Classic Finish $999.95
Sniper EFI Self-Tuning Kit
  • Includes 3.5" Touchscreen Handheld EFI Monitor
  • "Classic" Bronze Finish
  • Four Fuel Injectors

  • Holley 550-516 Details

    EFI Self-Tuning Kits


    • Bolt On Carburetor Replacement Designed To Fit Single and Dual Carb Manifolds
    • Throttle Body Mounted ECU
    • Supports Up To 650hp
    • 4 Wire Vehicle Connection (Battery +, Battery -, Switched Ignition & RPM)
    • Integrated Fuel Pressure Regulator
    • Integrated Ignition Timing Control And Coil Driver
    • Color Touchscreen For Setup And Gauge Views
    • Calibration Wizard - No Laptop Required
    • Self-Tuning ECU

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


    Engine Make/Size
    Cylinder Head Type
    Manufacturer's Part Number:

    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.

    Would this work on a 1962 3.5 L.  Oldsmobile 215 V8    That use to run a 400   4   Barrel  Holly carb  Or do they make a smaller size one like Fitech  Street  rated a 150 hp to 400 Hp 

    Asked by: Ozbloke
    As long as you have a square flange manifold flange or adapted to square flange you can use the Holley Sniper of the FiTech EFI systems.
    Answered by: Rusty B
    Date published: 2018-04-24

    Can you run two of these on a dual carb intake?

    Asked by: Jamesonrm
    Yes, It can be done, but will require some special tuning consideration.
    Answered by: Rusty B
    Date published: 2018-04-13

    Can you elaborate on what the necessary fuel deluver system consists of and what it does ? Is it intelligent or simply a fuel pump, regulator , and lines ? Thank you

    Asked by: Atl_nupe
    You can use a system like this - http://www.jegs.com/p/FITech-Fuel-Injection/FiTech-Go-EFI-Fuel-Command-Center/3525624/10002/-1
    Answered by: Rusty B
    Date published: 2018-03-22

    is there a vacuum port to run a cowl induction hood? got a 71' chevelle with functional cowl induction.

    Asked by: basicassbear
    There is a vacuum port on the base plate of this throttle body.
    Answered by: Jon Jegs Tech
    Date published: 2018-01-26

    Does it work with turbo (single mount) and what intake manifold do you suggest for a sbc 305?

    Asked by: Sankanyeah
    You can use it, however you will need special software for boost downloaded from holley.com - the intake can be http://www.jegs.com/i/JEGS-Performance-Products/555/513000/10002/-1 depending on the year of the engine.
    Answered by: Rusty B
    Date published: 2018-01-15

    Will this kit work with open headers?

    Asked by: Seeking knowledge
    Yes, as long as you have the o2 sensor mounted into the header collector it will work.
    Answered by: Seth W
    Date published: 2017-12-22

    I have heard that a spacer helps some potential issues with dual plane intakes. Engine Masters some what confirmed this... thoughts? Is the spacer theory plausable?

    Asked by: Jacinto95
    Each application is different. Many will benefit from the use of a spacer, it will be trial and error or you can check it on a dyno for your application.
    Answered by: Rusty B
    Date published: 2017-10-19

    What else is required to use this? Do you just simply bill this up and go or are there other parts requires I already have a electric Holley fuel pump btw this is on a small block 350

    Asked by: Kabjr85
    You will also need a fuel delivery system, take a look at 550-516K this includes fuel delivery with the unit.
    Answered by: Jegs Tech
    Date published: 2017-09-28
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    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations