It could be Ecklers components, probably done in the '70's and I have to admit, I like it. Check for the big block components. Rear sway bar, thick front sway bar, heavy duty half shafts with four bolt caps on the inboard side. If a 435 horse look for a 6,500 rpm tach and transistor ignition. Probably not a bad starting point from a price standpoint if the paint isn't too bad. Tuck and roll interior?