What the heck is it??

[cycleguy55]

Not Superformance. The under hood shot is a clear tell. See this SPO photo:



Yours (note the two 'bumps' on the firewall not evident on a Superformance):



Also, look at the dash in this photo - much different than yours (flat across the bottom):



Yours (dropped in the middle, steering column is higher on dash):



Here's where to find Superformance chassis number: https://www.secondstrike.com/Registr...ions_MkIII.pdf

Superformance would never use a '65 Mustang VIN - that's unlawful in most places, BTW.