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RPT had some fun with a 2007 Corvette A6 with an E-Force Supercharger, LS9 Camshaft, Patriot Stage 2 Heads, Yella Terra Rocker Arms and a strengthened A6 Transmission. This one was having constant misfiring on Cylinder #7. After further inspection and troubleshooting, found the intake valve was not fully seated against the valve seat. The heads were removed and sent to Patriot for repair. During that time, the decision was made to install the PRC Stage 2.5 Heads from Texas Speed. Looked at the pistons and did not any indication of interference between the piston and valve.
All of the parts were reinstalled and LS2 runs great. After tuning, there is a lot of torque and drives like stock. The tranmission feels really good after the rebuild and the shifts are nice. The end result after tuning was +193.8 rwhp and 190.5 ft-lbs of torque through an A6.
Last edited by Brian@RPT; Nov 15, 2011 at 08:29 AM.