my room mate used to run a B20/VTEC turbo with 6 psi in his teg... had a lot of probs, but a well built motor (he bought it that way) may have held up better.

i have met at least one guy running a B20/LS and he liked it... but like renegade said, it may be more trouble that its worth long run.

do some more research and let us know.