Vacuum source
 

Which is the better source for vacuum, from the carb or from the intake manifold? Or is there no difference?

Re: Vacuum source
 

For what purpose? For most everything it would be off the intake manifold.

For vacuum advance off the carb. The non timed port of course.

Re: Vacuum source
 

There are different type vacuum outlets. It depends on what you are running it too to know which you need to use. Give your year model & engine size & what you want to send vacuum to & I or some other Stovebolters can answer.
George

Re: Vacuum source
 

Engine is 350, bored .30 over with mildly aggressive cam. Main concern is vacuum to the power brake system.

Re: Vacuum source
 

Intake manifold vacuum for sure.