Thanks for posting that vid!Too cool.
I've got an old Goldust video that has Hubert match racing that very car against the Ramchargers Dodge,circa 1965 I think. The video shows him doing dry hops in the rosin and yankin the front tires-all while holding the drivers door open and looking rearward to see what the rear tires were doing-LOL.

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1968 Mustang 347,5spd 11.05@120.85mph NA