After doing a baseline pull on the dyno, the aftermarket airfilter I'd previously installed (in my "infinite wisdom") flowed so much better than the stock unit, that it made the MAF sensor go haywire and the motor was running too lean and I was actually losing power (max sustained 415 rear wheel hp). So Richard put in a stock tune that he adjusted to account for the airfilter and we did a 2nd baseline pull; 453 rwhp/438 rwtq....much better, especially given the 90*F plus ambient temps.
The fluidyne heat exchanger has more than twice the capacity of the stock unit, and the 2.7" pulley (stock is 3") will spin the blower faster for 3 to 4 psi more of boost, which will not only generate an extra ~ 60 to 80 rwhp, but also result in the torque peak moving lower I the rpm range.
I'm hoping for 530 rwhp 502 rwtq.
Will keep you apprised of the final result.