390-950CFM Holley Renew Kit - Alcohol

The 390-950 CFM Holley Renew Kit for Alcohol is a complete carburetor rebuild and restoration package engineered for Holley 4150-series carburetors operating on methanol or alcohol fuel blends. This kit restores worn or damaged carburetors to factory specification, addressing the unique sealing, gasket, and component wear patterns that develop in alcohol-burning applications where standard gasoline rebuilds fall short.

Alcohol fuel is significantly more aggressive than gasoline on rubber and elastomer seals, requiring specialized gasket materials and corrosion-resistant internal components. This Holley 4150 carburetor rebuild kit includes alcohol-compatible gaskets, seals, and internal passages that prevent fuel leakage, vapor locking, and internal corrosion—common failure points in standard gasoline rebuild kits when exposed to methanol or blended alcohol fuels. The kit covers carburetors from 390 CFM through 950 CFM displacement ratings, making it suitable for a wide range of engine platforms from small-block to large-displacement applications.

This carburetor rebuild kit is essential for drag racing, fuel-injected conversion builds, and vintage race applications where alcohol or methanol fuel provides increased cooling effect and boost capacity. Serious engine builders and tuners rely on alcohol-specific rebuild kits to ensure carburetor longevity under the higher heat and chemical exposure that alcohol combustion creates. Whether restoring a competition carburetor or upgrading an existing Holley 4150 for alcohol operation, this kit delivers the material specifications required for reliability and consistent fuel delivery in high-performance environments.