Well the GSXR1100F was more of a lower power budget tourer style bike hence the helical gears and only 34mm carbs ...as opposed to the GSXR 1100 K , L and on which were sports bikes 36MM 38MM and later 40MM carbs all having straight cuts ......the B12 got straight cuts by virtue of being a K ,L motor with more cc but less punch in the cam dept..
If it helps I have a B12 crank that needs a regrind on one BE journal and I,m sure I have the matching clutch basket....
Big Power well 300 is a big hope on helical's IMHO ..... I put Straight cuts in my poxey 200 BHP air cooled motor