OK, I moved the TV cable closer to the bellcrank pivot by 1/2", and managed to adjust it to where it still goes full throw @WOT, and is just a smidge tighter at closed throttle, w/o raising pressure.
The reduced leverage makes it more difficult to press the acc pedal because the TV spring is so stiff. The cable is not binding, just stiff, I think probably due to the spring. Originally I had to reinforce the pedal pivot because the stiffness of the TV broke it, now I have less leverage. At least it is reinforced. W/O the TV cable on there it is depressed easily.
Maybe this spring is custom made/cut and shimmed or something. It is really stiff.