E85 Carb Rebuild Kit 650/750/850/950FCM

The E85 Carb Rebuild Kit 650/750/850/950 FCM from QUICK FUEL TECHNOLOGY is engineered for serious performance builders running alcohol or E85 fuel in competition and street applications. This comprehensive rebuild kit supports carburetor flow ratings from 650 to 950 CFM, making it the versatile solution for tuners upgrading or restoring Holley 4150 and Quick Fuel carburetors. Whether you're preparing a fresh engine for a high-octane fuel program or rebuilding an existing carb to peak efficiency, this kit provides all the essential internal components needed to restore fuel metering integrity and throttle response.

E85 and alcohol fuels demand precision-engineered internal passages and metering circuits—standard carb components simply corrode or degrade under the chemical stress of oxygenated blends. This rebuild kit includes jets, gaskets, seals, and critical calibration components specifically formulated to resist E85 ethanol attack while maintaining accurate fuel delivery across the CFM spectrum. The kit's modular design allows you to fine-tune jetting and mixture control independently for each flow rating, enabling exact fuel curve matching to your engine's displacement, boost level, and fuel system pressure. Weighing just 0.49 lbs, the compact kit delivers professional-grade restoration in a manageable package.

This rebuild kit is ideal for drag racers, road course competitors, and EFI conversion veterans switching to carbureted alcohol engines who demand bulletproof reliability and repeatability. Installation requires carburetor removal and basic hand tools; most experienced tuners complete a full rebuild in under two hours. Compatibility spans all Holley 4150 series and Quick Fuel Technology carburetors in the 650–950 CFM range, making it the one-kit solution for multi-carb platforms and engine swaps using alcohol fuel. Verify your specific carburator model and current jetting before ordering to ensure proper component sizing for your power level.