1966 Plymouth Valiant 100

My understanding on the car from my Dad was this:

My parents bought it from a guy in Kingman AZ in Oct 66, 2 weeks after I was born. The guy who had the car originally, had custom ordered it from a dealership in California. When it showed up, he was told that it was illegal for street use in California and had to get rid of the car. He towed it to Kingman AZ where my parents ran into the guy. They bought it from the California Dealership/Unknown Guy through Beaudry Chrysler in Tucson AZ. The car has the 273 V8, Isky Cam, Carter 4 barrel, close ratio 4 speed and 4.11 rear end. It did not come with a heater. That was put in by the dealership in Kingman. The radio was installed in 1988 or so. But, I do have the original radio blank off plate.