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(550-510) Holley Sniper EFI Self-Tuning Kit- Shiny Finish

(550-510) Holley Sniper EFI Self-Tuning Kit- Shiny Finish

Regular price $1,000.00 USD
Regular price $1,400.00 USD Sale price $1,000.00 USD
Sale Sold out

Holley just brought EFI within range with Sniper EFI! Introducing Sniper EFI! Sniper EFI is economically priced so you can have all the benefits of Fuel Injection 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. A Sniper EFI system can put an end to cold start issues, hesitations, vapor lock, and flooding. We also offer a full line of Sniper Hyperspark distributors, Sniper ignition boxes, Sniper coils, and other ignition components for those looking to round out their ride with a complete Sniper EFI, Ignition, and Fuel system! Upgrade to Sniper EFI and get the tactical accuracy of EFI today!


  • Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 is recommended)

  • Throttle body mounted ECU – no extra boxes to mount

  • Supports up to 650hp with Four 100 Lb/Hr Injectors!

  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)

  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)

  • Integrated ignition timing control & coil driver

  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays.

  • Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!

  • Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!

  • Available in base & master kits (Master kits include 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!)

  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!

  • OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.

  • Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange

Emissions Regulations

Some of the parts sold on our store are illegal to install on an emissions controlled vehicle. Please check with your local state / city emissions office to verify whether this item is legal for installation on your vehicle.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

1965 and older U.S. manufactured California Certified vehicles

1967 and older U.S. manufactured Federally Certified vehicles

1967 and older Foreign manufactured vehicles

The following vehicles are considered Emissions Controlled Vehicles:

1966 and newer U.S. manufactured California Certified vehicles

1968 and newer U.S. manufactured Federally Certified vehicles

1968 and newer Foreign manufactured vehicles

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