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Old 07-18-2013, 06:12 PM   #1
ronnyT
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Join Date: Apr 2011
Location: atlanta, GA
Posts: 10
Dumb question about timing

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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