I am running a balanced and blueprinted 27 tempest. Ran the other day in a tournament w/ partner, all his gear and mine, full tank of gas, livewells full, 93 deg. air temps and 85.4 deg water temps, and turned it 5500 rpms hitting gps speed 71.8. Light load it should hit73 or better and in cooler water temps it should get better also. I have 3 large plugs in now and that seems to be the best combo on the holseshot which is pretty good even w/ a good load. I have an 07 PII w/ a 200 opti.