1970 Ford Mustang -- what a "makeover"! Trying to be a 351 Boss someday!

1970 Ford Mustang Description

What a "makeover"!!!
I have owned it for 3 years and have not done a darn thing to it buy drive it!!! I have the MARTI REPORT and check this out....it says from the factory it was a Green | 302 | Automatic.
Brand New:-interior (carpet, door panels, headliner, seats etc) to OEM specs it looks like-Panasonic premium radio | premium amp | 4 premium speaks (easy $1000)
Motor (351 Windsor) has been modified with performance parts (cam, 750 carb, headers, custom exhaust, etc) -- I did not build the motor and do not have a build sheet. Starts every time and runs really strong and sounds mean!! Im not a motorhead but buddies tell me its putting out at least 375-400hp!!!
Hurst 4-speed | 30 bored over | 8" posi rear | 3.55 gears
Body -- has some very, very minor imperfections.
Tires -- Front - 215|60|15 Back - 265|50|15
So,,,,whats wrong with it -- it still has 4 wheel drum brakes...thats it!!