do you know the history of your car?

73DartSport340 that sounds very intresting! you should start to reasearch it (i know i would). you might find out some really intresting stuff about it.
"I think(was told) it was originaly sold out of somewhere in Chicago/Illinois area dealership." could this be a mr.norm car? start by doing a title search in georgia, then do one in ny, lastly if the trail turns to illinois do one there. you will get some pretty intresting stuff back when you do this....good luck