Its a 351 based motor (357") with a precision GT4788, and yes in the summer I drive it every day (I put 9500 miles on it this summer). It made 640rwhp on pump gas and 10psi with some issues, it will make 700rwhp or so on 10psi this spring. If I want to turn it up everything is capable of 850+rwhp, but I wont do that until I can use what I have. The car went 10.40's@ 138mph @ 550rwhp a few years back.
With that turbo you guys will have to run a TON of boost to get over 600rwhp, unless it has a really well flowing combo and the correct camshaft, and in that case the p-trim turbine will be to small which will still make it really hard to get over 600rwhp and not destroy itself. I'm guessing thats a PT64-pt67 or something similar. It will be a fun street car, I've done a few cars with PTK setups with PT64E's that made good power (low 500's) on stock shortblock. I had the same turbo on my Gen 1 Lightning (My old daily driver) and made 570/700 @ 17psi or so. My dad now has a Gen 1 I built for him with a similar setup and a pt64e that makes 500rwhp/650rwtq @ 14psi.