Allstar Performance 1/2" Phenolic Carb Spacer - 4 Hole RJS Racing Equipment all Pro Series harnesses meet

all Pro Series harnesses meet a new standard of test records that rival anything in the industry

Free iOS and Android mobile app easily connects with the Bluetooth-enabled manifold

Renegade Race

toe and heel area

Fuel Pump Inlet / Outlet

Allstar Performance 1/2" Phenolic Carb Spacer - 4 Hole RJS Racing Equipment all Pro Series harnesses meetSpecially 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",