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Straight Plug Boots
Drag Parachute Pack
1967-1970 Pontiac Executive
Under the new FIA 8860-2018 standard all helmets must withstand the following tests:
Allstar Performance Holley 4500 4-Hole Carb Spacer - 1" Thick 2010009 Straight Plug BootsSpecially 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",
