Allstar Performance Holley 4500 4-Hole Carb Spacer - 1" Thick Engine Fastener Kits Kit includes a 5/8"-18 x

Kit includes a 5/8"-18 x 3" bolt and 4 spacers (

Run the entire race with one filter then simply wash in water so you’re ready for the next event

integration is sleek and seamless

1975-1977 Pontiac Astre

Allstar Performance Holley 4500 4-Hole Carb Spacer - 1" Thick Engine Fastener Kits Kit includes a 5/8"-18 xSpecially 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",