I do not have one but if you find one I would like to collect as many details as possible if you would share. The past three weeks I have been doing a survey of C6ZF-C and C6ZF-F assemblies. So far I have only one date code for a suffix C assembly falling in the 1967 model year and none of the suffix F type. So far I have some level of information collected for 29 samples.
Obviously, I cannot get pin gauge sizes of all the accessible calibrated parts in a carburetor from a set of pictures but I can pick up when designs of in certain parts changed over time. My data base still has some time frame gaps in it.
Dan Case