You can find out for sure with a Marti report. As little as $17.00
go to
www.Martiauto.com to see what else they offer.
You will need the full Shelby Vin, AND the full Ford vin or it's no-go with a Shelby. Also, email a heads up to the 67 Registrar that you a trying to get a Marti report as Marti will always confirm the Shelby vin to the Fomoco vin.
It is possible it will be a less that 1 0f 10