Allstar Performance Holley 4500 Open Carb Spacer - 2" Thick 600090168 Suitable for installation in any

Suitable for installation in any chassis

75 in Bores

Standard 3 layer suit

1979-1995 GMC C2500

1994-2003 Pontiac Grand Am

Allstar Performance Holley 4500 Open Carb Spacer - 2" Thick 600090168 Suitable for installation in anySpecially 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",