Well, your best options will probably be at www.intense-racing.com
but that is also the most costly.
A CAI and smaller pulley will net you immediate increases. Many pulley options for the Series 2 guys, but I'll let one of them chime in. I know my Dinky Series 1 pulleys pretty well, though
We have a few quick 2000+ cars here. PontiacDad, TaylorD, 2000SilverBullet, and Rogue. Rogue is our second quickest next to BadSSEi. Hook up with those guys and they'll get you right through it.
Some items that are available (pretty much all the stuff from a GTP works):
Headers (3 sources)
Pulleys (many different types and sizes)
CAI (3 sources)
And on and on.......