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Idles rough, accelerates fine, cuts out when coasting

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Old Nov 10, 2007 | 05:38 PM
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chrisd0729's Avatar
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Default Idles rough, accelerates fine, cuts out when coasting

My dad's '72 is running weird this week- it idles a little rough, accelerates fine but, completely cuts out when you let off the gas. He thinks it electric I'm saying it's fuel. If it only runs good when you're on it and it runs like crap when idling or backing down, it sounds like fuel is having a hard time getting it's way through until you mash the pedal.

What do you guys think? Where to troubleshoot first?
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Old Nov 10, 2007 | 06:05 PM
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I vote for trash in the carb, float set too high, trash in the needle & seat.
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Old Nov 10, 2007 | 09:38 PM
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If it has HEI...check for a broken wire at the pick up coil.
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Old Nov 12, 2007 | 09:42 AM
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Originally Posted by Hammerhead Fred
I vote for trash in the carb, float set too high, trash in the needle & seat.
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