From what I heard, the correction factor at ATS was somewhere around 23%. That puts your actual power to the wheels at less than 700 HP. With the turbo and all the nitrous you were spraying, I doubt there would have been that much difference at a sea level dyno with optimal conditions. Besides that, no one really cares about dyno numbers except the people you are selling parts to. Take it to the track and run under 11.50 if you want anyone to believe what you're selling. With the kind of power you're claiming, that should be no problem.