Thank you very much for the suggestion, hemicar1971. I do have the Broadcast Sheet. I will try this as one of my routes. There is a registry for 1970 GTXs so I'll see if I can get in contact with the guy. I was going to try the DMV for a title search, but they only go back 10 years.
“Working on cars teaches you patience... and every curse word imaginable.”
1970 Plymouth GTX -- A true gentleman's coupe, but a serious muscle machine.
