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Old 05-16-2021, 05:16 PM   #18
geezer#99
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Join Date: Aug 2009
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Re: New issue. Now the brakes.

While your cam might be a factor, your primary throttle opening to sustain an idle can be the real cause of marginal vacuum to use your power brakes.


What’s your idle rpm?
Where’s your vac advance plugged onto?

What’s your initial timing?

You need to close the primary as much as possible.
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