Been out for a bit, I didn't check the port heights on this bike, think its been ported as 7000RPM it goes mental, its not the carbs raising the powerband, but it revs through to 10.500RPM, and what a hit at 7000RPM, its a little rich through the lower revs and tick over, but I am well happy so far, more fettling to do then, excited about the end result now.