Correct Factory Vacuum Fitting Tri-power Engine Performance and the stainless steel vent

and the stainless steel vent strip with rubber vent seal

Before installation loosen all three carburetors so their position conforms to the hole centers of the pan

These will fit from 1955-1977

Kit includes three precision cut insulators

Correct Factory Vacuum Fitting Tri-power Engine Performance and the stainless steel ventFinally we have the original plated vacuum fitting as the Tri powers came with from the factory. This is an exact reproduction of the original. This part is used to obtain vacuum advance ( usually for advance for distributor) off the rear of the center carb. Also is used when Brass T fitting is used on center carb for vacuum advance on 1 side of t fitting. I do carry an after market brass vacuum fitting on the web site if you are looking for a less