Allstar Performance Holley 4500 4-Hole Carb Spacer - 1" Thick 23011606 Air Lift 1000 HD

Air Lift 1000 HD

Zamp NC-40 SFI Neck Collar is available in adult and youth sizes

Simpson offers 3 types of restraint mounting hardware

supple suede leather reinforced for improved comfort and feel on the wheel

5 x 5 Wheel Bolt Pattern

Allstar Performance Holley 4500 4-Hole Carb Spacer - 1" Thick 23011606 Air Lift 1000 HDSpecially 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",