I guess I was not understanding the marti report. Now that I got out all my Shelby paperwork I see some different dates. So, marti report says
Serialized : 03/06/67
Scheduled for Build; 03/20/67
Actually Built: 04/27/67
When I posted I was thinking 04-27-67 was the completed at Shelby date, but after digging out my paperwork from SAAC it says completed 05/13/67. Sorry for jumping on here before checking all my paperwork. But still my Ford vin is 7R02Q192xxx which seems to show that there will not be an actual vin number cut off but more of a date of completion cut off for the change over.