[rdorman]

Sounds as though you are getting close. Idle air bleeds are usually a last resort. 7 psi is MAX. Turn it down a bit. Under normal cersumstances, set the float level at the middle mark on the window, often the lower mark on the front works well. Main jets some times have an effect on the idle system because of more fuel in the main well. Pop when you let off usually means the idle system is not properly tuned. Check the position of the throttle plates at idle to be sure they are correct. A little carbon around the rim of the plug is from the rich idle mixture. 12 initial may be a little low. Set the idle timing for maximum vacuum, re-adjusting idle speed to be the same for each setting and take ready. Recurve to get the max you found on the dyno. Sounds like to me you only have to get the idle and initial timing worked out and you are good. The Victor will have cylinders that run hot and cold though. When tuning with temperatures it is possible to have high temps and be to rich, not to lean. Temp alone don't tell all the story but it does sound as though you have pull throttle correct.

Happy tuning!

Rick