75 darts sport is now a 71 dodge demon

my brother bought this car as a really rough 75 dodge dart sport. has a healthy aluminum headed 451. car ran 10.19's with a terrible 60 ft. of like 1.56's. my dodge dart 60fts 1.42's and runs a 10.40's. so that tells ya. since then he has installed mono leaf springs, cal tracs and converted it to a demon. put in a demon tail panel, new quarters, lots of door and fender straightening and the front radiator support, hood, extensions, grille and valance. car is going to be sweet and should be knocking on 9's on the foot brake only this saturday for is new debut with some color. i think he and my brother and law did a heck of a job for a first timer..