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Foose04 · 01-24-2011, 04:16 PM

Yeah the main issue is 13.5-14psi run 11.3@119-120. Last run was mostly 20psi, ran 11.2@119. No knock, same timing, safe a/f's. The only reason it went 11.2 was because of the better 60, the HP the truck is making is staying the same.

I'm pretty sold on it being a spring problem though, atleast I hope so.

01-24-2011, 04:16 PM	#17
Foose04 Senior Member Join Date: Feb 2010 Posts: 965	Yeah the main issue is 13.5-14psi run 11.3@119-120. Last run was mostly 20psi, ran 11.2@119. No knock, same timing, safe a/f's. The only reason it went 11.2 was because of the better 60, the HP the truck is making is staying the same. I'm pretty sold on it being a spring problem though, atleast I hope so. __________________ 12 GMC Denali HD: 4x4, 12" Bullet Proof, 24x12 American Forces, 40x15.50 Toyo M/T's, h&s mini max, deleted, 5" axle dump, S&B intake,tractions bars, air bags. 04 GMC 1500RST: TMS Iron 347/S480/4l80E - 9.63@143.22 05 GMC 2500HD: LLY@372HP/669TQ, 4x4, 8" FabTech, 4.56 gears & 37" Toyo M/T's Last edited by Foose04; 01-24-2011 at 04:19 PM.