Thank you, Ed,
My erred understanding was that all California-built 67 L78 Camaros had smog and thus got the MR-coded engines.
Are there any figures relating to how many total 67 L78 (4K) Camaros were built at Van Nuys, and what the breakdown between MR and MQ coded cars was?
From DMV records, it appears that my car was first sold to a consumer through a Chevrolet dealer in Reno, NV, which makes me wonder why it was K19 equipped given that it wasn't sold in California. I suppose it is possible that it may have been originally produced to be sold at a dealer in CA, but dealer transferred to Reno? I have checked CA DMV records and there is nothing that I have been able to find showing the car in their records. Sadly, the dealer in Reno is long gone.