Isolate your fuel rails from the body of the Holley Hi Ram to help keep heat soak creep from getting into your fuel rails. These spacers are made from nylon and are the same dimensions as the aluminum spacers included with the hi ram for a direct plug and play installation. Reports have shown up to 40*F cooler fuel rail temps on long drives! A must for a drag and drive event car, or any car that sees extended drive times.
