The easy was to set the dwell is : remove the plugs then adjut it whilst spinning that starter . more accurate and way faster that way .
if the dwell varies by more than 3 degrees when you rev. the engine , the dist. bushings are shot - time for another one , Pomona is March 2nd.
I recall you're in the SGV , go to NAPA on Truman in SF and ask Dave or Sue for NAPA Gasket # MS12185X tell 'em Nate sentcha for a discount .
When re-tighening the manifold to the head , start in the center and work your way out , this will prevent future leaks .
Should be _no_ vacuum at the dizzy @ idle , 18" ~ 21" at the manifold . retarded timing can cause low vacuum readings .
