Vacuum advance not working. Simple to test. Start the truck and let it idle. Open the hood and stand where you can see the distributor. Reach over and blip the throttle and watch the mechanism on the bottom of the distributor to see if it moves. If it doesn’t you probably have a bad diaphragm. Good luck.ðŸ›
Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)
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