I know of a few AP2's that rev to 9k and have reported no problems. But that's besides the point of this thread.

I have a lot to say, but none of it good about n/a mods. IMO the best money you can spend (if you're going to insist on staying n/a)is engine management and the full suite of bolt ons. For AEM and good I/H/E bolt ons you'll be out of around $2500 and should net about 15-20 whp.

The only 'n/a' mods that tickle my fancy are 2.4/2.5/2.7, etc rebuilds. And that sir, ain't cheap.