Holley 550-866 Sniper EFI 2GC Small Bore - Classic Gold

Sniper EFI Conversion kit for 1955 to 1969 Chevrolet, Buick, Oldsmobile, and Pontiac vehicles that came with Rochester 2GC Small Bore Carbs.

Part Number: 550-866

Not only does the Sniper EFI 2GC offer superior throttle response and WOT power over the carburetor, but you may also benefit from increased fuel economy! Put an end to cold start issues, hesitations, vapor lock, and flooding with the accuracy of EFI. You can also use the Sniper EFI 2GC to control the ignition timing, taking EFI to the next level. The Sniper EFI 2GC system is capable of supporting 350 HP on naturally aspirated engines. Installation of the Sniper EFI 2GC Small Bore throttle body is simple and straightforward:  Remove your current carburetor and bolt on the new Sniper EFI system. No intake manifold adapters required! Upgrade to Sniper EFI today! Let's face it, you love driving your classic car, but dread the hassles with your Rochester 2GC carburetor. Today's fuels are blended for modern fuel injection, not that old 2Jet carburetor from 50+ years ago. Holley makes it easy to convert your classic car with a small bolt pattern, two-barrel, Rochester 2GC carb to fuel injection. The Sniper EFI 2GC Small Bore is a bolt on electronic fuel injection system that will put the fun back in your classic ride.  Reinstall your factory or custom air cleaner. The Sniper EFI 2GC air cleaner flange matches the Rochester 2GC so it accepts most factory air cleaners. The Rochester 2GC small bore carburetor was commonly used on 1955 - 1969 Chevrolet and Buick, Oldsmobile, and Pontiac vehicles such as the Camaro, Electra, Super 88, Tempest and most C-10 through K3500 series trucks.

Features and Benefits

• Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
• Installs directly to the factory Rochester 2GC small bore intake manifold, no adapter required
• Engineered to fit 1955-1969 GM vehicles that utilized the Rochester 2GC small bore carburetor
• Throttle body mounted ECU – no extra boxes to mount
• OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.
• Universal throttle lever with TH350, 700R4 & 200-4R kick down provisions
• Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
• The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
• Bolt on Rochester 2GC small bore two barrel carburetor replacement
• High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
• Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
• 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!
• Integrated ignition timing control (with Holley Hyperspark, Holley Dual Sync or MSD Pro Billet distributors)
• Designed to fit most factory 2GC air cleaner assemblies
• Not designed for Tri-Power installations.