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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Vacuum issues

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Old Jul 25, 2008 | 08:41 PM
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Vacuum issues

I have a 81 F150 with a 302.I made the mistake a few years ago and disconnected all smog related equipment.What I need to know is where should the vacuum advance for the distributor be connected?
 
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Old Jul 25, 2008 | 08:48 PM
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Look for a vacuum port on the carb that has no vacuum at idle, but has vacuum when you rev the engine. That's the one you want. On a stock Ford 2bbl, it's usually sticking out the passenger side of the carb.
 
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Old Jul 26, 2008 | 05:01 AM
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The vacuum advance isn't even a smog-related item. It's been around long before emissions equipment showed up.
 
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