Just a 2007 Crew cab silverado 5.3L 2wd w/22in rims, bullydog gt, vette servo, borla pro xs, jba headers.  Stock 3.73 gears.

according to the mph on the programmer the speed the computer is reading is around 3-5 mph faster than the what the dash is reading.  My post a vid of the mph from the programmer sometime.