The port is below the carb on the flat surface of the intake manifold where the runners all come together. The outlet on the carb where the line to the dist. connects is ported vacuum. It is not useful foe testing.

Georgeeeeeeeeeeeeee

Last edited by Wrenchbender Ret.; 11/06/2018 2:58 PM.

They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum