Product Summary

4-Barrel Square Bore Carburetor Flange Type, Polished

    Comes as a Kit

    Key Specs

    Injection StyleThrottle Body
    CFM800 CFM
    Injector Size100 lbs./hr.
    Max Horsepower Rating650
    ECM IncludedYes

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    Speedway Motors 91606083 Details

    Put an end to mysterious air/fuel ratios, jet changes, and cold-start rough idle troubles with Holley Sniper EFI. Affordable aftermarket fuel injection is here and it couldn't be any easier to install on your vehicle. Holley Sniper EFI is a perfect match for any muscle car, classic truck, street rod, or nearly any other carbureted vehicle. Economically priced to save your hard-earned money for other parts of your build; Holley Sniper EFI is a self-tuning, plug and play fuel injection system that takes all the trouble and guesswork out of your switch to modern electronic fuel injection. With over 100 years of building quality fuel systems, you can trust Holley Sniper with all your electronic fuel injection needs!

    Holley Sniper EFI 4150 4-Barrel Self-Tuning Base Kit

    Holley Sniper EFI is packed with all the features that your car or truck needs. This throttle body fuel injection replaces any square bore or spread bore style 4-barrel carburetor. The built-in ECU keeps the wiring neat and tidy with no need to run the computer and associated wiring back into the cab of the vehicle. Connect the 4 necessary wires and you're good to go. The self-learning ECU takes care of setting the baseline tune while the full touchscreen display allows you to fine-tune as you please. Sniper EFI throttle bodies utilize OEM style TPS and IAC modules for dependable and serviceable use. Life is too short to hassle with cold start issues, hesitations, flooding, and carburetor inconsistencies. Leave that old 4-barrel to rest and bring in a new era of performance, reliability, and fun with a Holley Sniper EFI system!

    • Direct carburetor replacement
    • Fits single and dual plane intake manifolds
    • Naturally aspirated applications only
    • Throttle body mounted ECU - no extra computers to mount or relocate
    • Capable of supporting up to 650 HP
    • Simple, 4 wire connection (Battery +, Battery -, Switched ignition & RPM)
    • Built-in pre-set fuel pressure regulator
    • Integrated ignition timing control & coil driver
    • Color touchscreen for easy setup and gauge displays
    • Self-tuning ECU means you don't have to be a computer/tuning expert to enjoy EFI
    • Chrome finish

    1970-73 Camaro/Firebird EFI Fuel Tank Kit

    These all-inclusive EFI-ready steel fuel tanks from Tanks Inc. take the headache out of converting your classic to modern LS power. Each kit comes complete with a high-flow (255 liters p/hr) in-tank Walbro pump that supports up to 630 hp. Also included are a sending unit (Ohms will match the make/model/year application of tank), mounting straps, and hose (if applicable).

    • Fits 1970-1973 Chevy Camaro and Firebird
    • 20.5-gallon capacity (1" deeper than stock)
    • Longer straps included with the tank
    • 40-1/8" x 20-5/8" x 8"
    • Coated galvanized steel construction
    • Silver powder-coated finish
    • EFI-style internal baffling with 4.3-liter internal fuel tray to prevent fuel pump starvation
    • Fuel pump/sender are recessed in the tank for easy installation
    • No modification needed to your car
    • Looks like an OE tank when installed
    • Includes aftermarket 5-bolt sender tuned for original factory fuel gauge
    • Includes genuine Walbro GSS340 electric fuel pump
      • 255 LPH @ 40 PSI
      • Heavy 10 gauge no-warp mounting plate
      • Oven brazed 1/4" NPT supply/return line port fittings
      • Barbed rollover vent valve fitting
      • Up to 100 PSI operation
      • In-tank wiring harness


    Speedway Motors 91606083 Specifications

    MFG. Part #91606083
    BrandSpeedway Motors
    Injection StyleThrottle Body
    CFM800 CFM
    Injector Size100 lbs./hr.
    Max Horsepower Rating650
    ECM IncludedYes
    Carburetor Flange Type4-Barrel Square Bore
    User TunableYes
    Self TuningYes
    Injectors IncludedYes
    Intake Manifold IncludedNo
    Metering StyleSpeed density
    Throttle Body IncludedYes
    Throttle Body MaterialCast Aluminum
    Throttle Body FinishPolished
    Venturi Quantity4
    Fuel Pump IncludedYes
    Fuel Rails IncludedNo
    Calibration Module IncludedYes
    Wiring Harness IncludedYes
    Fuel Pressure Regulator IncludedYes
    Distributor IncludedNo
    MAP Sensor IncludedYes
    IAC Motor IncludedYes
    IAT Sensor IncludedYes
    TPS Sensor IncludedYes
    Use with Power AdderNo
    Venturi Diameter54.00mm
    Throttle Body Barrels4-Barrel
    Flow Rating255 LPH @ 40 PSI
    Sold in QuantityKit