I don't mean to hijack this thread, but I just saw this thread and I have a similar situation. I have a 73 gts with a 351C 4V/C4. Runs great, rebuilt engine/trans about two years ago. Problem: I just bought a 1998 Pontiac Grand Prix GTP(supercharged 3.8), and with a little bit of modding(headers, PCM tune, cold air intake, etc.) it will blow my Torino away. This drives me crazy, so I am determined to reverse this situation. My dilemma is: do I pull the cleveland and stroke it, or build the 460/C6 I have in the garage. I am not worried about finding mounts, etc. for the 460, I know it's doable. I am leaning toward the torque of the 460 though. Although it would be cheaper to stroke the cleveland since it's already built. Any thoughts are appreciated.

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73 ford gts/351C4V/C4/3.55 9" trac-loc

74 F100/360/4spd/4WD/3.25 open 9"

98 Pontiac Grand Prix GTP