This may be common knowledge to some, but check out this simple way to get more boost: http://www.heysefamily.com/BPCmodpage.html
This really smoothed out the power curve for my 9000. Low end power was previously very weak, now very consistent & top end is of course better as well. Basically, the needle never drops below half-white, and is usually in high white-mid yellow during normal driving. This mod seems to make for higher idle, though. I'll probably change it back when I upgrade the ECU.