Originally Posted by joeysworld
I have a 1975 gm quadrajet that Im trying to run on my 1972 c30 chevy pickup. I believe the carburetor has a egr port.
My question is: Which ports on this carburetor do I have to plug to run on my non egr/emission 350 v-8, manual tranny pickup.
In most cases the vacuum ports
you'll need are a large front baseplate port for the PCV, the rear baseplate port (or a port in the intake manifold) for the PB booster, and manifold (aka "full-time") vacuum port(s) for the vacuum advance and the automatic transmission modulator. Any other ports get plugged.
a stock GM distributor will always help performance.