I don't know about on the 2.3 but a lot of guys are getting burried into the 400's on pump gas AWD with a built 2.0L. My main controlling factor will be my injectors, which are going to be 950's, which I already have, but I'm going to tune to 15psi with 650's first. After I get my injectors on, my tune will control how much power I get, which I'm not that great at tuning, but I do it good enough to run stoich, and not blow anything up.