4.8 limit

By Tmpr4.8
December 28, 2016 in 1999-2013 Silverado 1500 & Sierra 1500

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Tmpr4.8

Posted December 28, 2016

Soo I have this 4.8 Silverado extedcab,228r ,3200 circle d , cai full exhaust , tuned with a built tranny but I jst couldn't get it to run like with it jst had headers and tune , I was thinking it cause it's a neggi, plus it got this really bad back fire in the intake , any ideas ??

jzaldivar

Posted December 28, 2016

Running lean, too much air not enough fuel??

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