I helped a buddy install a new cam and valve springs in his '04 GTO, M6 this past weekend. He had previously had long tube StainlessWorks headers installed, LPE CAI and had the car tuned. He just had the car re-tuned yesterday for the new cam. The new numbers are 381 HP and 366 Ft Lb torque. I thought the numbers seemed pretty stong.
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'80 Grand Lemans
Was 301 C.I. Will be bigger soon.
00 GTP NBM / Graphite, Stock
Sold Aug. 2011
70 GTO Black / Black TH400
460 CID, 542 FWHP, 580 FWTQ
(Sold, Fall '09)
04 GTO Black / Black M6
Back to bone stock and sold, fall '05.
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