I've got a set of 40mm carbs from a 1991 GSXR1100 slingshot, I know they will fit my GSX1100ET, but are they too big?? The engine has a Wiseco 1170 kit, but is 40mm just too much? (Is there such a thing as too much:)) I can see people are running 36 and 38mm, plus American websites suggest 40mm for track bikes only. I'm thinking maybe the inlets and valves are just not big enough, so I'd be wasting my time. any thoughts?