it would have to be a turbo unit tho, oh and bridge ported. the N/A engines could prove abit weak for a track car. i dunno people what can get out of em but it cant be much more than 300bhp.

the RX7 engine runs twin sequential turbo and like 280bhp standard. and with a big single turbo the skys the limit and rotarys can take like 40psi on standard internals and some guys in america tried to see how high one would rev and they got the engine to over 40,000 rpm. ... apparently