Holy cow!! Thanks for all that info. VERY informative.
Two things I should mention. First, I fixed the problem. Second, I have another.
The initial problem was found to be in the linkage. I had mounted the "throttle rod" about an inch off, and it apparently made a huge difference in the ratio of the throttle. I fixed that today, and the throttle is now much more smooth and linear.
I am still having tuning issues though, but I think I may have it figured out soon. I am now at 73F, and 78R, and the plugs still look lean. I do have a power valve on the primary side. It's a 6.5. The power valve in the secondary side has been plugged. As well, is it normal to have a small hole in each of the throttle plates? It's hard to determine what all Jet Performance has done to this carb.
Also, I have a 4 corner idle, and my understanding is that I need to have all four screws set the same. My best settings seem to be about 1.25 turns out on the primary side, and .5 turn on the secondary side. Is this a problem?
Thanks again!