Join Date: Jul 2006
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Yup these guys are right all the spring in the p7100 pump does is control the gov. fly weights. The tougher the spring the more the fuel rack can move allowing higher RPM....or something like that. Go with the Redline or P-pump it like they said.
01 Qc Cummins 4x4 long box, edge attitude with juice (HOT!!), 4" exhaust, afe stage 2 intake, HTB2 62/12, banks intake pleum, bully dog big fuel kit, stage three jammers, southbend 3250 DD, BD Blow off valve. PDR master and slave cylinder upgrade. Sold
2006 mega cab 4x4 auto. Stock for now.