Do I have a vacuum leak?

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Do I have a vacuum leak? #2980344 10/31/21 07:26 PM 10/31/21 07:26 PM
Joined: Dec 2004 Posts: 733 Northern Virginia Moparmaniacc OP super stock
Moparmaniacc OP super stock Joined: Dec 2004 Posts: 733 Northern Virginia	Rebuilt 440, mild roller cam, roller rockers, brand new Holley 750 vacuum secondary, no PS or PB, Cant get it to idle smooth as it should be. Idle smells rich, have to change my clothes after a ride. Vacuum gauge reads only 10psi at idle - this is the vacuum from the back of the carb to the PVC valve on the driver side valve cover. (shouldnt it be more like 15-20?) If I unplug this hose from the vacuum gauge and partially cover up that hose with my finger, the engine will speed up (bad?). If I take my finger away, the engine will stall (good?). I have a litle bit of crankcase vapor smoke coming out the breather on the passenger side valve cover which indicates a positive pressure not a vacuum there. (bad?) If I cover the carb with my hand the engine does not speed up and will stall out. (good?) thanks for your advice.

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