Q: Distributor Vacuum Advance Valve Assy
Was the Vacuum Advance Valve (control) only on Firebird’s, or was this also on GTO’s ? Was it installed on any `68 Pontiac with any manual trany ?
A: The Distributor Vacuum Advance Valve Assy was used on all 1968/1969 Pontiac’s with Manual Trans and the 1967 M.T. A.I.R. engines. # 9773623. It was attached to the RH Rear of the Intake Manifold. The Plastic Cover on the end should be Black. On the RAII engines, this cover was Green (#9794257).
This should not be confused with the Distributor Vacuum Control which attached to the Distributor itself. Both are available NOS now & then.
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Content last modified: January 15, 2014 at 2:11 pm