Thread: 40 backfire
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  #15  
Old 01-18-2013, 01:11 PM
Telly Telly is offline
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Join Date: Jan 2008
Location: Monument
Posts: 274
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My 78 was originally from California and still has all emissions installed. One thing is does not have is a catalytic converter. Did the rig originally come with one? I'm wondering if not having a cat may be contributing to the exhaust backfire. Doug
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