Whoa!! Took my breath away when I looked at the pictures of your Cali LRC. I've only seen one 1976 37 Californian LRC with four cyl Perkins engines and it belonged to a friend of mine and his father in Port Orchard, Wa. So if it's not the same boat it's one of very few made in that configuration.
To start with most were powered with 6.354 n/a Perkins and they were only made between '76 and '77. It's essentially a 38' LRC minus the aft deck storage hatch which was added the following year and voila it became a 38'.
Does it have two or four fuel tanks?
If you have questions, feel free to PM me.
Congratulations on your purchase
Careful . . .I Have a Generator and I'm not afraid to use it !