Put the bike on a dyno and have a custom map built.
On my V2 the difference between the Dynojet map and the custom map is huge.
Eg: at 2200 rpm I went from 29.94 FT-LB of torque to 49.45 FT-LB, my maximum moved from 70 FT-LB to 74 and down from 6500 rpm to 3700 rpm, a far more usable place.