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With cams that big, I think the 61mm is just going to lose boost at max settings as that compressor wheel can only move so much air. You'll probably hit 28-29 psi for a second, then it will probably taper into the 25-26 psi range. I would guestimate you'll wind up around 625 rwhp, though the cams will certainly help your lower boost/pump gas numbers.
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