I am a Hemi guy, and the wedge is easier to maintain for racing. Now a days, the wedge heads flow pretty good. We have a set that flow a little over 360cfm and we are running 10.0's on pump gas with a wedge. Yeah the Hemi heads flow, but stock heads need work. The valve guides are over size, and the seats can be an issue as well. You will be better off with a set of Stage V heads and go from there.

With a Hemi, oiling is critical. If your going to build one, run the oiling on the stand and get it sorted out before it goes in the car.