rpm? probably 5500 is sufficient. I think mine makes peak hp around 5000 and peak tq around 4000.
as far as power? who knows. I would suspect 235-240hp and 270-280tq.
but do yourself a favor, and everyone else: dyno it without the o/r to get a decent stock baseline (doubt the filter makes a diff from the paper one). Nice to keep track of such things.