Factory High Stall Converters

This was to my point. The same converter behind a different torque curve will produce different results. An 11.75 inch case isn’t a high stall anything. Maybe in 1970 certainly not today.
But saying Chrysler never offered a high stall is anything but correct. They were stamped "Hi Stall" and had different part numbers indicating such. They were the factory's performance converters.