1" Thick Open Center Carburetor Spacer Fits for Carter AFB Edelbrock Holley 4150 4160SBC BBC 4 BBL This high-quality 1-inch thick phenolic carburetor spacer is designed to improve the performance and efficiency of your V8 engine. Featuring an open center design, it is engineered to fit a wide range of popular square bore 4-barrel carburetors. The phenolic plastic construction effectively reduces heat transfer from the intake manifold to the carburetor, helping to prevent fuel boiling and maintain a denser air/fuel charge for more consistent power. Features Heat Insulation: Phenolic material acts as a thermal barrier to keep carburetor temperatures lower. .
