Thanks fellas!
Sadly all did not go well with the dyno, we discovered a MASSIVE leak from between the V once the bike reached high temperature from what I can only assume is the thermostat.
Normally it's just a matter of removing the airbox and fuel rails to access the V, sadly someone, probably me, put the intake boot clamps on the wrong way when I dropped the engine last time, meaning they cant be accessed from the gap in the frame they usually are, meaning I'm going to have to drop the whole engine out to access them...