Your much Better off Going with a webcam and some titanium springs. Those hotcams like to rattle the valves enough at stage one...at stage 2 they still say not to use titanium springs. But they all work....you just have to watch your valve adjustment a little more.
Also cams go better with some higher compression too. A .390 grind webcam and a wiseco piston is good for a difference in power you can feel.