Allstar Performance Holley 4500 Open Carb Spacer - 2" Thick BR20035 1987-1989 Mazda B2600

1987-1989 Mazda B2600

Frame Rail Brace

Lightweight IMCA

1956-1956 Ford Customline

Allstar Performance Holley 4500 Open Carb Spacer - 2" Thick BR20035 1987-1989 Mazda B2600Specially 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",