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Old 11-09-2016, 05:13 PM   #1
Tony S.
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Join Date: Oct 2015
Location: Clackamas, Oregon
Posts: 57
1978 454 missing/backfire

I have a 1978 454 that seems to have a bit of a hesitation and a little backfire out of my exhaust? I've been fighting this for a few weeks now. I have replaced wires, cap, rotor, plugs, vacuum advance... I can't seem to find the problem? It makes a slight squeel that sounds like it's coming from #1 just as it sends out a little backfire through the exhaust? Does anybody know what this might be?
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