Allstar Performance Holley 4500 4-Hole Carb Spacer - 1/2" Thick Data Acquisition 1984-1996 Ford F-250

1984-1996 Ford F-250

1996-1998 GMC Savana 3500

1991-1994 Lincoln Town Car

Harness Slide Adjuster

our exclusive interchangeable cheek pads are lined with soft knit Nomex(R) for added comfort

Allstar Performance Holley 4500 4-Hole Carb Spacer - 1/2" Thick Data Acquisition 1984-1996 Ford F-250Specially 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",