well the battery is fine, the rectifier's charging at 14v, the pickups and flywheel are clean, the wire splice is good, i've cleaned the fuel filter in the tank, taken the carbs off and cleaned them out inc the power jets, re sealed the airbox rubbers, cleaned and checked the gap on the spark plugs, the pv's line up and servo moves to all positions, all pies are where they shouldbe and still the bike is not doing much from 10k rpm onwards, its like it wants to rev but is being held back. i cant think of anything else to try?

cant imagine anything has thrown the jetting out and can think of nothing else to try, any suggestions folks??