Well it only took a year but I finally got the quick change torsion bars figured out and how to easily set the height. Probably should get ahold of elephant as the torsion bars I got with the rear setup are too tight to remove through the quick change flange. I went back to my smaller rear bars and they slide in and out easily. I found the trick is know how much sag the bars have.
For my current setup the car sags 3.5" from where the torsion bar is neutral. So to change the bar I just jack up the car 3.5" from where ever it is at. This puts the torsion in a neutral no tension position. Then just pull the bar out. I drilled and tapped the end of the bar with 1/4 - 20 about 3/4" deep. The next step is to just change how high the car is jacked up by the amount you want to change the final height. Then rotate the bar and keep trying slots until the bar slides in easily. It will eventually line up. Once the bar is in on both sides then let the car down. My car needs a little more bar on one side than the other so I jack it up until the wheels are off the ground then put a 1/2" board under one wheel. I then lower the car back down and jack up until the car raises 3.5". With the board still under one wheel this lets one wheel sag more than the other. The rest of the process is the same. Nothing new here to reveal just thought I would share how I do it. I will probably need to look up my own post to remember how high I need to jack the car up.
