How much horsepower does a 1999 Mustang GT have to the rear wheels?

I believe it's right around 265, but I could be off a bit.

Clarification, "How much is the rear wheel horsepower of a 2007 STOCK Mustang GT with NO modifications?"

You Haven`t Giver Enough Information. Engine Size ect. You Can Find The Advertised HP From The Dealer But Rest Assured It Will Be Less Than Any Tell You, On Any Car. To Get It Correct It Will Need To...

The 1999 Ford mustang was rated at 190 horsepower for the 3.8 liter engine and 260 horsepower for the 4.6 liter engine

260 horsepower at 5250 RPM and 300 lb-ft torque at 4000 RPM according to my Consumer Guide book