Feature:1. Fitment: Replacement for HOLLEY; Replacement for FORD; Replacement for MOPAR; Replacement for CHRYSLER; Replacement for DODGE, etc.2. Applicable Model: Fits any square bore carburetor, like the replacement for Holley 4150 4160, for Barry Grant, for Carter and for Edelbrock that are used on many Small or Big Block engine.3. Improving Fuel Distribution: Square bore carburetor spacer is used to extend the length of the intake mixture column, thereby improving air and fuel distribution.4. 4 Hole Open Center: The open design increases the volume of the plenum chamber to increase RPM power, and the 4 hole design increases the mixing speed to improve low speed and mid range torsion.5. Reduce Fuel Temperature: The phenolic carburetor spacer reduces the fuel temperature inside the carburetor, bringing denser, more powerful fuel to the manifold.Specification:Item Type: Carburetor SpacerMaterial: Phenolic Plastics + MetalSize: Approx. 2in / 5cmFitment:Replacement for HOLLEY, Replacement for FORD, Replacement for MOPAR FITS ANY SQUARE BORE CARBURETOR, like for Holley 4150 4160, for Barry Grant, for Carter and for Edelbrock that are used on many Small or Big Block, Replacement for Ford, Replacement for Mopar engines..Package List:3 xCarburetor Spacer4 x Screw4 x Gasket4 x Nut