leonbrasher66ExplorerJun 20, 2013454 Chevy engine backfiresReplaced a 454 engine last fall, drove it about 350 miles and put it in storage for 6-7 mos. when i got it out,it started backfiring under a hard accel. Any suggestions//
wheelmaniiExplorerJun 28, 2013My 1996 Chevy 454 was doing the same thing. I replaced the plug wires with an after market set. Solved my problem.
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