Radar knows what he is talking about, and offers great advice. One post you want to get into racing, the next post you say you are not going to beat on it. You cant do one and not the other. The 2 stroke is more power, lighter, and cheaper to race and beat on it if you want. Why are you not wanting a 2 stroke? Sounds like you can not afford the up-keep on a 4 stroke. You both are asking to much for your bikes IMO.