Hi James,
Nice car!
I just found your pics here, since the car is a Hamtrack build, there is a good chance there is a BS buried somewhere (unlike LA cars).
It's hard to tell in the first photo, but if it has the chrome exhaust tips through the back panel, it's not an original California car. 440-6 & hemicuda's sold new in California got turndowns due to noise regulations.
Finding an original California car with a rear defogger is pretty rare also, due to the milder climates.
I'm starting to suspect that the car came from out of state at some point in it's life.
The car I found in Gardena back in the 70's (that I wrote to you about) had a raisin bran hood, not a shaker.
Did previous owners let the registration lapse at some point? The car is currently wearing a current CA plate (with 7 characters), a 70 car (that never had it's reg lapse) would have a blue & gold plate (with 6 characters).
Robert