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Tom Wesenberg · 10-19-2018, 04:53 PM

My stock engine has only 50 PSI on all 4 cylinders, but runs strong and smooth.
10 years ago all the bad backfiring was caused by poor contacts in the repro switch.

10-19-2018, 04:53 PM	#44
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Terriable backfiring My stock engine has only 50 PSI on all 4 cylinders, but runs strong and smooth. 10 years ago all the bad backfiring was caused by poor contacts in the repro switch.