Some new info has come to light that may relate to the ‘Z’ stamped VINs.
Please take a look at your '67 Shelby American 'Production Order' (PO) and if you would, please advise what the circled date written in the upper right corner of that form is. Feel free to PM me with a reply if you prefer not to post it.
(For those of you who do not have the SAI paperwork (PO, invoice, etc.), there is information in these documents that can NOT be found anywhere else. I suggest to get them from the ’67 registrar (if available) so you know exactly how your car was completed at the LAX factory.)
Thanks,
Rich