Every engine will be different, even from the same builder, so, in general, I think the stock porting is adequate for this RPM range, and the average installation should produce between 165 and 175 HP.  Matching up the ports would help, and street porting would be a big help. Then later, if you want to go nuts, or put the Sun&Fun record away for good, you could bridgeport the streetported engine, and go up to maybe 185 HP.

Lynn,
Thanks for the very informative posting.  Since we don't have to comply with SCCA rules & regs (i.e. restrictors in the intakes), my question is how does peripheral porting compare with the above in regards to hp & longevity.  How fast do you have to spin the rotary to get good benefit from peripheral porting?  (Powersport Aviation claims 215 hp from their pp engines.) 

Thanks,
Mark S.