'm just wondering what is the proper vacuum for distributor
advance on a Chevy smallblock. I've heard differing ways. Just want the
best way for more performance on the steet. I already know which ones
on the carb are ported and full. Got a quadrajet by the way. Th
ANSWER:
Ported vacuum for the distributer and full vacuum for an automatic
transmission modulator and the heater control if it is vacuum operated.
Otherwise if not needed cap off the full port nipple on the carb.