when I was a kid I restored a 68 stang. (had a 70 as well) built a hot 289 (back in the day it was fast, now a camry v6 would run with it)

but my dream would be a 68 mustang fastback resto mod with a turbo LS motor, yeah i know it is a GM motor in a ford but it is narrower and the same weight but the ford 5.0 vs the mighty LS-7, 7 liter and TONS more torque and more HP, even a modded 5.0 cannot match the torque of a stock LS7. but size is the biggest factor. the 4 valve ford heads are really wide, like 4-5 inches wider. the LS-7 2 valve heads are narrow.

a tremec 6 speed (i had one in my GTO and it was awesome also used in the viper so it is strong)

low slung with modern suspension, big wheel/tires tucked in the fenders. modern interior with AC.................makes my car wienie hard.