Mystery solved. The tranny was overhauled 40 years ago for pure drag racing. What's in it now is called a "crash box". I'm no expert, but gears have been modified and parts have been removed for this car to jam shift period. When you slam it, she goes. However, plain old cruising is a SOB. It won't be cheap, but I'm gathering up all the parts to put it back to stock post 1970. I told there were a lot of upgrades to the way the 833 shifted between 69 and 70.
