Nice of mother nature to cooperate and give you a sunny day. My asshole brother had a 71 Mustang Mach 1 with a 429 SCJ 4 speed. It was a Ford show car originally, and it was displayed at various locations to show the new bodystyle for the 1971 models. That of course made it an early production car, and one of about 615 or so with the 429 Super Cobra Jet engine and the drag pack option which added a solid lifter cam, ram air, Detroit locker differential and 4.11 gears, an oil cooler and staggered rear shocks among other things. Dumbass sold it cheap when I was about 14 years old, of course we didn't know how rare it was then.