Originally Posted by Sniper
Originally Posted by cudaman1969

Still ported vacuum not straight, all those connections were used so engine got to operating temp first. Look at the advance ‘can’ on a mopar distributor. They ALL pull the plate in the timing advance direction so IF it’s manifold ported it would be in wrong direction, give it gas it drops, let off it advances, backward! Chevy was like that, had one, 70-1/2 Z28


Pretty sure you don't know the difference between manifold vacuum and ported vacuum.

Also pretty sure you don't understand why vacuum advance is used.

Pretty sure you’re an a$$, I know exactly what I’m taking about. Do YOU know what manifold vacuum is? Do you know what carb port ABOVE and BELOW the throttle plate is?

Last edited by cudaman1969; 05/03/21 01:39 PM.