Allstar Performance 1" Phenolic Carb Spacer - 4 Hole Helmet Visor Frame Widths up 31 in

Frame Widths up 31 in to Chevy V6 / V8

Pressure Side

Not for adult use in a full-size racecar

1984-1995 GMC Jimmy

Allstar Performance 1" Phenolic Carb Spacer - 4 Hole Helmet Visor Frame Widths up 31 inSpecially 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",