AFR Phenolic Carburetor Spacers
AFR phenolic carburetor spacers are designed to extend the length of the intake mixture column, improving the air/fuel distribution. Open and 4-hole spacers are available to help improve your engine's output. Open plenum spacers will help to increase high-rpm power, while 4-hole spacers help to increase midrange torque. They are manufactured from phenolic plastic and can be installed on any 4-barrel square bore carburetor configuration.