Mopar Superstocks from the 1960's didn't run 11's or 10's on street tires. They used the same bias ply slicks we all used into the 2000's. On real street tires they would have been lucky to run a 12 back then. There are lots of vintage photos with super stocks pulling the front tires so the tires or the tracks could not have been too bad.
Vintage Super stocks didn't run anywhere near 140mph in the 1/4 even the '68 Hurst Hemi lightweight Barracuda's and Darts (Race cars not street cars) where 13 mph slower than this in the first few years of competition.
And only an idiot would use "three speed sticks" in 1964. Some guy's had Clutched 3 speed autos, but that is a poor man's Lenco and wasn't a 3 speed manual. Manuals were all 4 speeds by the end of the Max wedge and beginning of the Hemi.
Vintage Super stocks didn't run anywhere near 140mph in the 1/4 even the '68 Hurst Hemi lightweight Barracuda's and Darts (Race cars not street cars) where 13 mph slower than this in the first few years of competition.
And only an idiot would use "three speed sticks" in 1964. Some guy's had Clutched 3 speed autos, but that is a poor man's Lenco and wasn't a 3 speed manual. Manuals were all 4 speeds by the end of the Max wedge and beginning of the Hemi.