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Description
Holley Sniper EFI 2GC Large Bore - Classic GoldHolley Sniper EFI 2GC Large Bore Classic Gold Sniper EFI Conversion kit for 1974 1978 Chevrolet, GMC, Oldsmobile, and Pontiac vehicles that came with Rochester 2GC Large Bore Carbs. Overview Let's face it, you love driving your classic car, but dread the hassles with your Rochester 2GC Large Bore carburetor. Today's fuels are blended for modern fuel injection, not that old 2 Jet carburetor from 50+ years ago. Holley makes it easy to convert your
Holley Sniper EFI 2GC Large Bore - Classic GoldSniper EFI Conversion kit for 1974-1978 Chevrolet, GMC, Oldsmobile, and Pontiac vehicles that came with Rochester 2GC Large Bore Carbs.
Overview
Let's face it, you love driving your classic car, but dread the hassles with your Rochester 2GC Large Bore carburetor. Today's fuels are blended for modern fuel injection, not that old 2 Jet carburetor from 50+ years ago. 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. The Rochester 2GC Large Bore carburetor was commonly used on 1974 - 1978 Chevrolet, GMC, Oldsmobile, and Pontiac vehicles such as the Camaro, Firebird, El Camino, Corvette, Omega and most C-10 through K3500 series trucks. Check out our year/make/model application search at Holley.com! Installation of the Sniper EFI 2GC Large Bore throttle body is simple and straightforward: ?????? Remove your current carburetor and bolt on the new Sniper EFI system. No intake manifold adapters required! ?????? 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. 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. Upgrade to Sniper EFI today!
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
- Engineered to fit 1974-1978 GM vehicles that utilized the Rochester 2GC large bore carburetor
- Designed to fit most factory Rochester 2GC large bore air cleaner assemblies
- Installs directly to the factory Rochester 2GC intake manifold, no adapter required
- Designed to fit most factory 2GC air cleaner assemblies
- Universal throttle lever with TH350, 700R4 200-4R kick down provisions
- Throttle body mounted ECU ???? no extra boxes to mount
- Not designed for Tri-Power installations.
- Supports up to 350HP with Two 100lb/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 dont 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
Details:
- Finish: Classic Gold
- Fuel Pressure: 58.5 PSI
- Injector Size: 100 lb/hr @ 58.5 PSI
- Inlet / Outlet Size: 9/16-18 Female O-Ring (AN 6)
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Product Reviews
★★★★★ 4
Doesn’t look like a tactical vest
Size: 20lb, Color: Black
Affordable and easy to wear for a nice rucking session around my city neighborhood. Strap design fits comfortably around my shoulder. Tends to rub my traps after a long session, but that could be due to posture. Clips securely but straps are too long. Fits under hoodie very nicely.
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Solid and comfortable vest
Size: 30lb, Color: Black
This vest is solid. Fits good, feels strong, and the weight sits right without being annoying. I like it for workouts because it adds that extra push without making it uncomfortable. Definitely worth it.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Very comfortable
Size: 8lb, Color: Black, Size: 8lb, Color: Black
Love my weighted vest. It fits comfortably and the pocket holds my phone while I walk. It’s not too bulky so in inclement weather I can wear it under a jacket. My posture and walking pace has improved since using my vest everyday.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
How much weight are you carrying?
Size: 16lb, Color: Black
I’m very pleased with my 16lb weighted vest. Great quality. The straps are easy to adjust and the weight is evenly distributed when wearing. It really helps with your posture. Great way to ease in on training for backcountry hiking/camping.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Great price and good quality.
Size: 10 Lb, Color: Black
Great price and arrived on time. Good quality and very comfortable to wear with adjustablefront strap. Easy to put on and take off and stays in place . Is not bulky and the weight is distributed evenly. Really helps you sweat and adds to your work out!!
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Reviewed in the United States on May 20, 2026
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