Ill go ahead and throw my two cents worth in here.
I have no doubt that Bryce is putting out a decent head. The problem with the testing most racers do is like we are seeing here. A guy normally builds his engine based on a total combination of parts,so when you step up to a better flowing cylinder head,you would be crazy not to upgrade the camshaft to take advantage of it.
Then like Bobby did,change the torque converter to help round out the package .
Its not that the Airwolf heads aren't going to work better than a stage 2 Edelbrock done by somebody else with your old combination but who wouldn't want everything at its best?
Keith