Quote:
Originally Posted by Palf70Step
How often is it run? The 1 bbl on my original 70 would gum up when it set a lot. I would pull off the top, run some carb cleaner thru it and it would run fine until it set again. You may have a sticky power valve or jets from the gas. Only other thing I can think to check is the actual vacuum advance unit to see if it is sticking or not moving.
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I run the truck 1-2 times a week to local car shows. About 10-15 total miles weekly.