Allstar Performance 1" Phenolic Carb Spacer - 4 Hole Helmet Visor Offers the maximum combination of

Offers the maximum combination of overall flame and heat protection

Pilot Bushing Driver

Pressure Side

Hydration Coupling

Allstar Performance 1" Phenolic Carb Spacer - 4 Hole Helmet Visor Offers the maximum combination ofSpecially designed for drag race applications to isolate carburetor from manifold, spacers prevent horsepower robbing heat transfer and increase the distance from the bottom of the carburetor to the manifold plenum for better air flow. Spacers are CNC machined in the U. S. from a polymer compound able to withstand temperatures up to 400F. Available in open or four hole versions for 4150 and 4500 series Holley and Holley style carburetors in 1 2", 1",