Sniper Motorsports 550-511K Fuel Injection System



Sniper Motorsports 550-511K Fuel Injection System For Use With V8 Engines With 4150 Flange Intake Manifold; Converts To TBI; With Black Throttle Body/ Throttle Body Mounted ECU/ Integrated Fuel Pressure Regulator/ Wideband Oxygen Sensor/ Handheld EFI Monitor/ Power Harness Cables/ 7 Inch Digital Dash Kit

Holley just brought EFI within range – introducing Sniper EFI master kits! It’s economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Put an end to cold start issues, hesitations, vapor lock, and flooding. Upgrade to Sniper EFI and get the tactical accuracy of EFI today.


  • 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 Means You Don’t Have To Be A Computer Or Tuning Wiz To Have EFI
  • Bolt On Carburetor Replacement
  • Throttle Body Mounted ECU
  • Limited 90 Day Warranty

  • Specifications:

    Aspiration: Naturally Aspirated
    Engine Compatibility: All Engines
    Fuel Injection Type: Throttle Body
    Metering Type: Speed Density
    Includes Calibration Module: Yes
    Includes Distributor: No
    Includes ECM: Yes
    Includes Fuel Pressure Regulator: Yes
    Includes Fuel Pump: Yes
    Includes Fuel Rails: No
    Includes Gaskets: No
    Includes IAC Motor: Yes
    Includes IAT Sensor: Yes
    Includes Intake Manifold: No
    Intake Manifold Finish: No Intake Manifold
    Intake Manifold Material: No Intake Manifold
    Includes MAP Sensor: Yes
    Includes Oxygen Sensor: Yes
    Throttle Body Finish: Satin
    Throttle Body Material: Aluminum
    Throttle Body Mounting Flange: 4-Barrel Square Bore
    Venturi Diameter (MM): 42.88 Millimeter
    Venturi Quantity: 4
    Includes TPS Sensor: Yes
    Includes Wiring Harness: Yes

    From the manufacturer


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