I have the trick flow intake on my stock heads at the moment and I noticed a decent improvement in power. I'm even running a 75mm (I know, too big) throttle body on it and i still picked up bottom end power. I'm putting the new heads, cam, rr's, and accessories on in a few weeks when I get the car back from the tranny shop. I can't wait. I would however do as everyone has suggested and wait until you get a good cam and heads before you put the intake on. That way you'll only have to do it all once.