EFI Set, Holley Sniper, 1974-78 GM, 2GC Large Bore

Hassle-free fuel injection

Includes everything you need for installation

Holley makes it easy to convert your classic car with a Rochester 2GC Large Bore two barrel carburetor to fuel injection. The Sniper EFI 2GC Large Bore is a bolt on electronic fuel injection system that will put the fun back in your classic ride. Installation of the Sniper EFI 2GC Large Bore throttle body is simple and straightforward. 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. Kits are available in 2 finish options: silver or classic gold. The base kit includes the throttle body, necessary components and handheld touchscreen, while the master kit includes everything in the base kit, plus 20-ft of fuel hose, 2 filters, 1 high pressure fuel pump and all required fittings. Features: • Bolt on Rochester 2GC large bore two barrel carburetor replacement • Installs directly to the factory Rochester 2GC large bore intake manifold, no adapter required • Designed to fit most factory Rochester 2GC large bore air cleaner assemblies • Universal throttle lever with TH350, 700R4 & 200-4R kick down provisions • Throttle body mounted ECU – no extra boxes to mount • Supports up to 350HP with Two 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 (with Holley Hyperspark, Holley Dual Sync or MSD Pro Billet distributors) • 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! • 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 for 2.0" exhaust ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange