got intercooler?
I saw no mention of an intercooler, with no intercooler the more boost you run the higher the intake temps and the less oxygen you get per psi, I suspect you'd find mroe power with a cooler intake carge, I mapped mine with megasquirt before and after intercooler, I was hitting 220 intake temsp without and intercooler, a cheapo ebay intercooelr got my temps down to abotu 120, and abetter treadstone intercooler got my temps down to around 100 degrees