mvent
Well-Known Member
Planning ahead and thinking about vacuum advance adjustment. Have my initial and total set and ran out of weather before I could dial in vacuum. I’ve watched Tall John’s video on how he does it, and have read putting vacuum gauge where it can be seen while cruising on flat road and using mighty vac etc. In Tall John’s video he actually moves the distributor at around 2k RPM with vacuum hooked to get highest steady rpm. Wouldn’t doing it his way change initial and total mechanical timing?