WETTE VETTE, if you go up an cubes, with no other changes, the power curves will be as high, but at a lower rpm. If you want to do this, you really need better heads. If the heads are up to the task, your cam will probably be good, but if the heads are not good enough, your top speed may drop with a noticable increase in low speed torque!!!

Blown 1500,
I figured some CNC heads will be needed to feed the 598". I still want to turn 5500 to 6000 RPM so I still may need to tweak the cam grind a bit. I will definately talk to you about the AFR's when I get to that point. Only downfall right now with the AFR's is I already have the bolt on Jesels for the Dart heads. Talk to ya later!!