Allstar Performance Holley 4500 4-Hole Carb Spacer - 1" Thick 23011606 The use of EPS cheekpads

The use of EPS cheekpads ensures better protection in case of lateral impacts

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Allstar Performance Holley 4500 4-Hole Carb Spacer - 1" Thick 23011606 The use of EPS cheekpadsSpecially designed for drag race applications to isolate carburetor from manifold, spacers prevent horsepower robbing heat transfer and increase the distance from the bottom of the carburetor to the manifold plenum for better air flow. Spacers are CNC machined in the U. S. from a polymer compound able to withstand temperatures up to 400F. Available in open or four hole versions for 4150 and 4500 series Holley and Holley style carburetors in 1 2", 1",