I was told this was an early 1969, but couldn't figure out the rear quarters. The engine was built by Holman-Moody. It was one of 3 built and was on the cover of hot rod in 1968 with the other 2.
You must mean this one:
This is Mickey Thompson's original 1969 record setting Mach 1, it even smelled like an old Mustang inside. They let Brian Thompson, Mickey's son, do the inaugural run down one of the courses however he had to keep it below 120 (I think) because it didn't have the proper safety equipment for today.
Here is the Mustang the Brian drove for a record:
This is my brother-in-law Brian's(not Thompson) car. He went 211mph (209 average) and held his class record for a day.
Cool, my Uncle has the record in his Pantera out there. I think there best MPH so far has been 210. Probably wont go back though, they changed the engine and now just drive it on the street. My cousin though might put that engine in his 66 Stang and go out and see what it can do.
One of the things I plan to do soon is make the trek to Bonneville during speedweek. I've been a fan since Rod & Custom magazine featured the build up of a SOHC 427-powered '27 T roadster back in the late '60's. Pics like these just add fuel to the fire...