Recently a b16 (omniman) and b17 (chad) have been built with off the shelf regular parts and both made just under 200whp and wtq in the 120s. Check the HT all motor forum for dyno plots and info. Using a b18 would result in more power. You can build them as crazy as you want to, it just comes down to how much $ you want to spend to make the power you crave.