Hmmmmm... 52 hp for 1,380. Not too shabby, I'd rather do that than buy a whipple or a KB, port job w/ supporting boltons = 500+ rwhp. That's my goal, I won't plan on making it any faster. It will be a daily driver.
The guys around here think so...anything smaller produces too much heat in the blower and might get you a few more HP, but they lower is what gets them more torque...They are pumping out 470+ torque too I believe with that setup...
Not sure if you saw this page but it has some good info on it too:
I just saw where Steve from Tousley Ford, Mr. 10% over dealer cost off any Ford parts, now can deal in FRPP too! He can ship the complete Ford Racing bolt on Whipple kit (same as GT500) for 3k even. I think that is a very tempting offering for some of us that might want to put the car back as stock, or at least have as many of the stock parts, completely stock, as possible. Yeah the Steg is a heck of a bang for a buck, no arguing that, but I think I might hold off and invest in the screw type, when I just have to mod everything to the point where the fuel and air delivery systems also need to be upgraded. Life is full of options, some more expensive than others.