Yup, SP is really taking advantage of putting out the content on his GT500.
Maybe Monera3v meant 790 HP @ the crank?, because there is no way a stock GT500 is going to produce that at the wheels. If they measured 705 at the Wheels in this example, that converts to approx. 805 HP @ the crank (15% drive train loss). That's a nice up tick over the quoted stock numbers for sure.