Not 100% sure on the stock data but a I have a GSX-R 750 with a power commander, Leo Vinci full race system and a BMC air filter and after a map written by PTR (Phil Tainton Racing, the guy that does the Australian super bike team) the rear wheel horse power is about 140... and let me tell you thats more than enough. I can blow off almost anything on the raod, killed a fairly new (2005- 2006)Ducati 999 off the lights the other day, maybe the gixxer just rocks or maybe the duke´s rider sucked balls. All I know is that he gave it all it´s got and I still killed him, he told me he gave it all it had when he finialy caught up at the next lights)...