Quadrajet four hole design 1.00" height. These spacers are designed to insulate and reduce heat flow to the carburetor keeping it cooler to allow a denser fuel mixture to enter the engine and produce more horsepower.
Mr. Gasket 3406 Phenolic Carburetor Spacer Kit - 1 Inch - 4 Hole Center
3406 Mr. Gasket Phenolic Carburetor Spacer Kit - 1 Inch - 4 Hole Center
Mr. Gasket 1509 Carburetor Fuel Bowl And Mettering Block Gasket For Holley 4-BBL
Mr. Gasket 1937MRG Carburetor Adapter Kit - Large Holley 2-Barrel to Small
Mr. Gasket 97 Carburetor Heat Dissipater - Holley/AFB - 1/4 Inch
