Canton Racing Products CRP-85-060 Phenolic Carburetor Adapter for Holley 2BBL & Holley 4BBL 1 in.

Compatible with Holley 2-Barrel to Square Bore;

This 1" Phenolic adapter that allows the Holley® #R4412 2BBL carb to be mounted on 4BBL manifolds that have the standard Holley® bolt pattern. These spacers are adjustable front to rear for fine tuning. Comes with all necessary hardware and has threads that are Heli-coiled.;