73 Dart Sport 340 help

73 Dart Sports came with 8-1/4 rear, probably 3:21 with or without Sure Grip. If it was an auto it had 727, manual a 4 or 3 speed where possible. Sun roof makes it more desireable but value also depends on amount of rust and the fact it doesn't have numbers matching 340. Unless you know you can flip the car for a profit or you really like 73 Dart Sport 340 I would pass on the deal...IMHO.