I was at the NHRA Oklahoma City Nationals in '57 when John Zink's 317 HP Tri-Power, solid-lifter, Chieftan showed 'em all the way home in Stock.... but I had to leave early and didn't get to see it...
He ran 94+mph (dunno the e.t.), through the mufflers, with the air cleaner on, and on street rubber. 3-speed stick car.
I've always heard that the supercharged Fords were the baddest pure stock cars around in '57, and we all know how fast the Fuelie 283's were, but this Pontiac ran roughshod over the entire field......