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Old 07-13-2018, 06:30 PM   #17
demian5
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Join Date: Aug 2016
Location: Lake Forest, CA
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Re: 1969 C10 Idle Issues

Quote:
Originally Posted by Jimjific View Post
if I use my hand to partially cover the carb inlet, it stays running
Vacuum leak. Probably from throttle shaft. Use a propane torch (unlit) to find leak, or you can use brake cleaner or cab spray.

Is the vacuum canister for the advance on the distributor ruptured and leaking (as it should be on manifold vacuum at idle)?

How about pictures of your setup with the air cleaner off?
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