OK, we'll go with that. You are asking the wrong question.
You don't adjust the vacuum advance to work with manifold vacuum. You tune the engine to work with the vacuum advance that uses manifold vacuum.
Have a good evening.
Can you please elaborate? I'm asking what to do to make it work because it had too much vacuum at idle and advances the distributer at idle. If I can't make it work tomorrow I will end up putting a mechanical distributer off a lean burn on it.
