I'm making a good bit with my 2J right now, and have good spool, but am running a larger frame turbo than what you want/need. I won't disclose peak numbers, but I make 500rwtq at 4200rpm. For the power you're wanting, 35R with the bigger exhaust housing is all you would need. You'll make 18psi at 3500rpm. I've done it before with that setup and that turbo, and I just saw Dan tune one a few days ago that did exactly that.