Allstar Performance Holley 4500 Open Carb Spacer - 1/2" Thick 28120BK M and L-59) and one

M and L-59) and one for large sizes (L-60

1968-1973 Jeep J-2600

Included easy-to-read installation guideAir Lift Company has been developing air spring suspension products for more than 50 years

1985-1995 Pontiac Firefly

Black Anodized

Allstar Performance Holley 4500 Open Carb Spacer - 1/2" Thick 28120BK M and L-59) and oneSpecially 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",