sounds like a bad vacuum leak. check all the vacuum ports on the carb front and rear..... test you alternator also to make sure it's putting out enough voltage to run the hei ignition.... the ignition needs 12volts or more to run properly.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.