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Personally, if your going with a relatively tame street/strip motor, why go with aluminum top dollar heads? You can make great power with a set of gasket ported aluminum vortecs and a decent sized voodoo or XE cam. I would go with an XE274 cam, the 284 is a bit large for decent low end torque in a daily driver. I have heard the xe274 run and it is a mean sounding cam. Make sure u have enough compression though or youll just end up with a motor which sounds badass but is a dog.
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2005 PBM M6 Red interior GTO
-CNC ported LS6 heads, PAC Springs, HPE-C cam, SLP Under-drive pulley, 160 stat, Harland Sharp Rocker arms, Volant CAI, MSD Wires, Ported TB and Stage 2 Intake by Jeremy Formato, ARH 1 7/8 Long tubes and high flow cats, MagnaFlow CatBack, GMM race shifter, Pedders street 1 bushings, Textralia OZ700 clutch, Gforce Halfshafts
455RWHP/411RWTQ
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