550-870K1 Sniper Stealth 4150 Self-Tuning Fuel Injection System Kit, Shiny Finish
InfoVehicle Info Needed
HOLLEYPART NUMBER: 510-550-870K1

550-870K1 Sniper Stealth 4150 Self-Tuning Fuel Injection System Kit, Shiny Finish

$2,31910
ShippingShips on Sep 14, 2026
Lowest PriceLowest Price Guarantee

Base Kits
Sniper Stealth 4150 Self-Tuning Fuel Injection System Kit
  • Small Block/Big Block Chevrolet

    Includes:
  • Sniper Stealth 4150 Self-Tuning Fuel Injection System
  • Sniper EFI HyperSpark Distributor, Ignition Box & Ignition Coil

    Features:

    • (1) Holley Sniper Stealth 4150 Self-Tuning Fuel Injection System, Shiny Finish - 510-550-870
    • (1) Holley Sniper EFI HyperSpark Distributor - 510-565-300
    • (1) Holley Sniper EFI HyperSpark Ignition Box - 510-556-151
    • (1) Holley Sniper EFI HyperSpark Ignition Coil - 510-556-152

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    • Fuel Injection Performance with a Carb Appearance

      The Sniper EFI Stealth 4150 Self-Tuning Kits from Holley feature all the benefits of electronic fuel injection for a carbureted engine and are a perfect option for streetcars, race cars, off-road vehicles, or anything running up to 650 normally-aspirated or 600 forced-induction horsepower. These kits help eliminate the typical issues associated with carburetors such as cold starts, hesitations, flooding, and vapor lock. Designed to mimic the appearance of a classic Holley Ultra XP Carburetor, all wiring is hidden and comes out the back for a truly stealth-like installation. All units have provisions for popular GM and Ford automatic transmission kick-down brackets. Sniper Stealth kits are available in base kits or master kits that include a complete fuel system.

    Part TypeFuel Injection Kit
    Product LineHolley Sniper EFI Stealth 4150-Series Self-Tuning Kits 4-Barrel
    BrandHOLLEY
    Part CategoryPerformance Parts
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

    Items You Need

    Sure Grip Cut & Pull Wire Stripper

    JEGS

    Sure Grip Cut & Pull Wire Stripper

    Part Number : 555-80573
    $1999$21.99
    You Save$2.00
    Wire Crimping Pliers and Stripping Tool

    JEGS

    Wire Crimping Pliers and Stripping Tool

    Part Number : 555-80575
    $1399$15.99
    You Save$2.00
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning
    Your Cart

    Your shopping cart is empty!