I know somebody with the same setup on his Evo (also 2.3 stroker) and he was getting 520bhp at 6000rpm and 550ft/lbs at 3700rpm so hoping for similar! Think that was around 2 bar, might run a bit less just to be kinder on the transmission.
I'm not that bothered about numbers, just after decent power early on and no lag. From all the graphs I've seen the only downside is the power starts dropping off a bit higher up in the rev range but you can't have everything.
I did get asked if I'd considered the Garrett G25 turbo's when I priced it up but I haven't heard much about them to be honest.