Pete and Wade, thanks for the information. That sound right for my car as well.

The issue now resides with CARB (California Air Resources Board). DMV states that it is not up to them, it is CARB that decides.

GM Canada, while very nice to talk with, are sticking to their guns that they do not offer compliance letters on cars older than 25 years. Sounds like they lost all the relevant information from that long ago.

So now I am on the hunt for any documentation that states what the car was required to have for both 49 states and California in 1969. That way I can present to CARB and then maybe get them to agree to an inspection showing I have the parts. Any advice on how to find assembly documentation or any documents related to smog in 1969 for a 400 would be appreciated.