Idle hang issue is cured!
I'm not sure exactly why, but when running it yesterday, the idle climbed all on its own which allowed me to lower the idle screw, and now the problem is cured. I have a suspicion concerning the piston rings as the cause for this.
She is no longer smoking blue, but gray. If I recall, the gray is due to oil burning off in the exhaust pipes instead of the combustion chamber, which would be blue.
I also bought a set of stock airboxes off eBay and got them installed, along with a replacement speedo and tach (although the tach is really... really slow to respond), and cable. I drilled out the mixture screw caps on the carbs and set them appropriately. The bike just sits and idles now. No pops or backfires, and I can rev it, again smooth.
Took her for a short ride yesterday, and she ran well! Can't wait to get the DMV crap taken care of so I can ride this piggie!
Getting excited!
~Revanoff2~