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Old 07-02-2017, 04:09 PM   #1
LT102
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Vacuum source

Which is the better source for vacuum, from the carb or from the intake manifold? Or is there no difference?
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Old 07-02-2017, 04:16 PM   #2
toolboxchev
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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.
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Old 07-02-2017, 04:20 PM   #3
Wrenchbender Ret
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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.
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Old 07-02-2017, 05:53 PM   #4
LT102
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Re: Vacuum source

Engine is 350, bored .30 over with mildly aggressive cam. Main concern is vacuum to the power brake system.
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Old 07-02-2017, 05:57 PM   #5
Stocker
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Re: Vacuum source

Quote:
Originally Posted by LT102 View Post
Main concern is vacuum to the power brake system.
Intake manifold vacuum for sure.
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