Sniper EFI 2GC Self-Tuning Base Kit

Name: Sniper EFI 2GC Self-Tuning Base Kit
Brand: HOLLEY
SKU: 510-550-866
Price: 1348.95 USD
Availability: InStock

^$1,348⁹⁵$1499.95You Save$151.00

Ships on Sep 04, 2026

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Base Kits

Sniper EFI 2GC Self-Tuning Base Kit

Bolt-On Self Tuning EFI Conversion

Rochester 2GC Small Bore Flange

Supports Up to 350 HP

Controlled by 3.500 in. Touchscreen

(2) Fuel Injectors

Clasic Gold Finish

For Troubleshooting Tips setting up your New Holley Sniper EFI System, please see this helpful video from Holley Performance.

Features:

Fits select 1955-1969 GM Vehicles
Bolt-on EFI kit that replaces Rochester 2GC Small Bore Carburetor
Self-tuning ECU requires no previous tuning knowledge or computer
Supports up to 350 HP with two 100 lb./hr injectors
Throttle body mounted ECU
Integrated ignition timing control
Only 4 required wiring connections (Battery +, Battery -, Switched Ignition & RPM)
Internal fuel pressure regulator
High-resolution color touchscreen for setup, tuning, and gauge output displays
Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time fuel map learn
OEM style TPS/IAC and fuel pressure regulator
Clamp-on oxygen sensor kit
Sniper EFI Software is free to download which allows for real-time tuning and constant updates

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

Revive a Rochester-Equipped Chevy with Fuel Injection

Holley has expanded its line of critically-acclaimed self-tuning EFI systems to include the Sniper EFI 2GC Unit. It’s perfect for 1955-1969 GM vehicles originally equipped with a Rochester 2GC Small Bore Carburetor. Sniper EFI 2GC kits are designed to support up to 350 HP. The self-tuning module makes it an easy, no hassle way to get the most performance out of your classic vehicle without a laptop computer. Just answer a few simple questions about your vehicle configuration and it creates the base map and then starts tuning on its own while you drive, no computer required.

For Troubleshooting Tips setting up your New Holley Sniper EFI System, please see this helpful video from Holley Performance.

Part TypeFuel Injection Retrofit Kit

Product LineHolley Sniper EFI 2GC Self-Tuning Kits

BrandHOLLEY

Package Height9.3

Package Width12.6

Package Length14.6

Weight9.52 PG

Part CategoryPerformance Parts

QuantitySold as a kit

Injector Wiring Harness IncludedYes

Injection StyleEFI Throttle Body