Okay -- so seriously -- building a motor is a lot more complicated than what you're asking.
Things like heads and flow rates etc have to match the cam choice - and the compression rate (static) and what RPM band etc (though you stated you want to see high rpms).
Thing like this need to be very well planned - particularly if you want to go racing and be competitive.
I wouldn't ask this stuff on a forum... you need to take your info - vehicle - weight - trans gearing - rear gearing - tire size etc to a REAL ENGINE BUILDER and tell him what you're after and see if you can do what you want to do.
Sound like fun!
