300 straight 6
Have a 1980 f150 straight 6 4 speed 1
barrel carter carb truck will run if I keep
foot on gas but won't stay running if I let
off getting fuel to carb need help
I would look for vacuum leaks and try adjusting the idle. Your carburetor may be due for a rebuild.
It sounds like a vac. Leak to me. Try to find a leak in the hoses first look for dry rotted hoses and if that don't work... with a cold engine start it up and spray some starting fluid son the carb gasket and see if the idle changes if so it's prob. A bad gasket.
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