A couple of generalizations are made here that could be misleading:
For instance, the Moto GP and F1 folks might disagree with you about the rpm thing. Also, the hp/displacement relationship is a classic misconception that used to be relatively true in previous decades, but now is not true when you are speaking of modern engines.
I'm not saying any of this to be an ass, but this is quite a wide topic for discussion and speaking to specifics could be misleading, atleast itinitially. :thumbsup: