Vacuum advance information and myths

RB,
Post #52. More BS. The dyno tells you how much timing the engine wants, not a dist machine.

And yes, more timing at idle with longer duration cams. Timing at idle with Chry engines is the initial timing, usually in the 8-12* range. A 220 @ 050 cam is not going to need 50* at idle & I never said such a cam would need that much. It might need 20-30* & testing will show what it does need. Man vac adv would be one method of adding the extra timing.