Porting a rotary is like doing a heads/cam package on a ls1.Simply put more air and fuel will produce more power.Mazsport built my friends streetported fc and raped his ass on the price.Me and Julio(boriquarotary) reffered him to pito several times but he declined.Like i said if stock ports were the shit to make power why is the fastest all motor rotary ported?+1 on your an ignoramASS