1/2' 4BBL-4 HOLE SPACER

Compatibility: Holley 4 Barrel,Center Type: Ported Style,Thickness (IN): 1/2 Inch,Finish: Natural,Color: Black,Material: Phenolic Plastic,Includes Gasket: Yes,Includes Hardware: Yes Insulates Your Carburetor For Cooler Fuel, And A Denser Fuel Charge,Phenolic Material Results In A Cooler, Denser Fuel Mixture For Increased Horsepower,Phenolic Plastic Material Provides Excellent Insulating Properties,Limited 1 Year Warranty