Quote:
Originally Posted by ronnyT
Trying to set timing on an 82 c10 with a 350. When I advance my timing my truck idles better but the idle goes up. At this point I know I am supposed to take it down with the idle control on the carb (holley) but it doesn't change. Any ideas? Also got a wicked backfire only when I turn the truck off.
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did you remove the vacuum advance b4 you set the timing and plug the line, and your timing is prob to high that's why u r getting a backfire. others may chime in but that's where would start