1978 Ford 300 backfire/popping
#1
1978 Ford 300 backfire/popping
I have a problem with my truck. Its a 78 ford f250 with a straight 6 300. Not every time but most of time after truck has been running for a while it will backfire, or pop after i shut her off. Does not make a loud noise out of exhaust, just in engine. I replaced, plugs, plug wires, dist cap. Any ideas on how to fix it?
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