340 fuel/ignition issue?

OK, update details on the 6322, (even though I'm still not sure exactly how some of this happened.)
First, the tiny hole hidden by closed secondary blade was clogged with carbon, so cleared that.
I re-cleaned the fuel inlet passage to make sure there was nothing else to get in the seats. Blew out passages with air.
Set AV spring at 2 turns, changed the drop to about .060".
Rechecked float levels at 1-1/16"
Checked functioning of the dashpot.
Checked all settings, checked fuel wells were still secure, etc.
Installed it, and it idles with a 11.5:1 A/F ratio, screwed in idle adjustment almost all the way, no change. (even though it originally idled at 14.5 prior to the test run where things went wrong.)

I am baffled!!! As soon as I get my original 6518 re-bushed and new nitrophyl floats installed, I'll put it back on. It had never given me problems. But this "back up TQ" has really driven me crazy!!