I have a gm4 turbo on a stock 2.0. It is currently tuned at 18 psi putting out 300hp on the dyno. Spools around the 4800 rpm range. With a built 2.5 and some aggressive tuning it should be about the same as a 30r.
It is also a rotated intake with a perrin fmic.
Heres an old pic. has a different intake now.