DON'T DO AEM PULLEYS! They are a friggin waste of money and will end up ruining your alternator. I used to have them and did not notice a single thing from them. OEM pulleys are just fine.

Cam gears wouldn't do much for you now. I'd move onto something else. It all really depends on what your goals are. You're really wasting your money throwing it all at superficial bolt-ons. If you want to make real power you're going to want to pull the motor apart and put some better components in: rods, higher compression pistons, cams, valvetrain, intake manifold, etc. That's where you're going to gain real power. You will, of course, potentially remove some reliability from it unless you are very meticulous and build it right. That's the case with any build...

hih

Edit: btw, ACT doens't make 'stage' clutches. They make them in various codes like HDSS, XTSS, XTR6, etc... You probably have an HDSS.

Additionally, you have a header, not headers. Header is singular on your motor.