Vacuum advance information and myths

I asked in a FB mopar group a while back VA ported or not. The whole thing got pissy fast. I was surprised how many people don't, won't try to run manifold vacuum. 68 was the year Mopar changed over, 65 in Cali I think for emissions. I always run my street cars manifold VA and I know racers that use MV to keep their engine cooler between rounds.


If you MUST use manifold vacuum to get the idle correct the engine is pissed off.