This a pair of 1/2" thick phenolic risers that is for the Corvair carburetor. Add a little performance to your machine the cheap way, and keep the heat away from the carburetor to solve the heat soak or carburetor boiling issues.
1" Ported Phenolic Carburetor Spacer Fits 4BBL Holley AFB Edelbrock QFT Carb
2" Open Phenolic Carburetor Spacer Fits 4BBL Holley Demon AFB Edelbrock SBC BBC
1" Thick Phenolic Carburetor Spacer Open Center Fits Holley AFB SBC BBC 4 BBL
1" Ported Phenolic Carburetor Spacer Fits Holley Carb Chevy 4BBL SBC BBC
1" Open Phenolic Carburetor Spacer Fits Holley Carb Chevy 4BBL SBC BBC 1.00"
1/2" Ported Phenolic Carburetor Spacer Fits Holley Carb Chevy 4BBL SBC BBC 0.5"
