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backfire... KA-POW!!!
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03-04-2005, 02:21 PM
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1974gmc
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Join Date: Feb 2005
Location: Kamloops, BC, Canada
Posts: 312
i had the same sorta thing, when it got up to a certain rpm it would backfire and gutless as hell. but it ended up being the collector gasket blew out
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1993 Chevrolet K2500 454 4L80E
1974 GMC 1/2t 2wd Stepside 305 auto *sold*
1985 Ford Mustang GT 5.0 5spd
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