Hey there, nothing wrong with a 4 door!! I have a 1968 Dart 4-door that was an original slant 6 auto. I have added schumacher motor mounts, TTIheaders, 1968 383 HP Engine, 4 speed, 8 3/4 with 3.23 sure grip, disc brakes, new rear springs, new front big block torsion bars, 14x 5.5 rims with the...