Gentlemen,
   I have the opportunity to purchase a 4 port or a 6 port RX-8 engine. I thought I wanted a 4 port because I thought it would be easier to muffel. I just heard a "rumor" that the 4 port is junk and go with the 6 port. I need 220-230 hp using the 2.85 PSRU, no turbo. I would consider P-porting if absolutely necessary to get the HP. Obviously, I know very little about engines and want to start with the best I can get so, considering my needs which one do I want?
Thank you,
Randy