This resolves the displacement question: from Drew Gatewood, tech inspector at BMST
Question: So what is the final word on displacement overbore for Classic Production? The CB750 is 736cc from the factory. There is an overbore allowance, but the full overbore allowance puts the 736cc to a little over 750cc.
Answer: As long as the factory stock bore is at or below the class entered (e.g. 750.000cc) a +.050" maximum over bore is allowed to take is over the class size,
and still be legal in that class. Stock displacement is 736.463cc - +.050" overbore would make it 758.205cc, and this is acceptable.
George