If my 727 shifts too soon, and too soft, which way do I adjust?

69_340_GTS said
If my 727 shifts too soon, and too soft, which way do I adjust the (stock) linkage? Make the sliding carb linkage longer, or shorter? I tried adjusting per FSM, but since this is a TCI performance unit, I'm assuming the FSM really can't be followed to the letter.

Longer, as in pushes the linkage farther back.
Then the next step is to make sure your throttle opens all the way.
A little throttle opening can be sacrificed if it gets your shifts where you like it if that's ok with you.