IT'S ALIVE!
It's idling pretty smooth at 900 rpms. #1 cylinder needed a 1 1/4 turn out on the bypass screw to make it sync with #2. I'll might look into this further. #4 needed a slight turn out on the bypass. I also adjusted the angle of the downrods on the linkage to get them almost the same. I'm going to work on this some more, and get them the same.
It is like a dance, like Danny says, jumping from one side to the other with the engine getting smoother with every jump.
I don't know how many turns out each idle speed, or idle mixture screws are now. I'm skeerd to find out. I need to get it out on the road first. It got dark when I finished. I did start with 1.5 turns out with the mixture screws, and I only turned them in.
I did find out why, after I turned the idle mixture screws in and then back out to where they were, my engine ran like ****. Apparently I wasn't gentle enough when I turned them in. Boy, do you have to be gentle. The seats stuck on the mixture screws on #2 and 3. I was wondering why my two previous attempts at tuning the carbs failed. I was able to remove them from the screws and reseat them. I then cleaned and then polished the end of the screws with some 600 and reinstalled them. I don't know if this was the "right" way, but it seemed to work.
Wow, I'm learning some **** now.