From the couple garage pics it looks like it could be a 99 regular 35th anniversary GT. If this is the case it would have a 4.6L 2v v8 rated at 260hp, 300 ft lbs or torque, with either a 4R70W automatic 3spd w/ overdrive = 4spds or a T-56 5 spd manual.
Depending on the trim you might have two tone cloth seats with stitched ponies in the front seats or tan? leather seats with stitched ponies.
Obviously some cosmetic changes have been made such as the flame paint job. The wheels are the 17" starfish pattern offered as an option on the GT's in 99.
I'm basing this off the fact the car is mainly in stock form and that it isn't a v6 with added fog lights and rims.
As said, a few more pics including the interior and engine would help out a ton.
12 Black GT500 SVT PP l 2.6 Pulley/Idler l Airaid l o/r X l 305 NT555R's l Recaros l
04 Azure Blue Mach 1 / 03 Sonic Blue 3.8 / 14 Sterling Grey F150 FX4 402A 5.0 / 11 GT500 R.I.P.