Originally Posted by Curt B.
I think 48bigtrucks nailed it and the problem is crud stuck in the valve at the bottom of the gas tank. Seen that one many, many times.

I take that back as I ASSumed you had an older truck with the fuel supply coming out the bottom. Here's some carb troubleshooting info that may be of use:

http://chevy.oldcarmanualproject.com/carb/UM900/abc15.htm


1952 1300 Canadian 1/2 ton restomod
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