Hummm, good question. One of the parameters to making that power would be head flow, it's abilty. On paper, the RPM should be able to so long as it is coupled with the right stuff.
I don't see a problem. Not saying it would be easy or inexpensive. Do you see a problem?
You would basically pulling 2hp per cube. That would be a really stout build.
IMO, I think it is fantastic that the abilty is possible & there to do so with a stock replacement head. I' rather a better flowing head myself to do so. It would easier and probably require less cam.