Phenolic material is renowned for it’s heat insulating properties, which results in a cooler and denser fuel mixture, which in turn produces more horsepower.
Suitable for Holley Squarebore Carburettors.
Includes:
- 1 x 2” Phenolic Open Squarebore Carburettor Spacer
- 1 x Mounting stud and washer kit
Carby spacer suits Carburettors using Holley Squarebore Style Base
