dbcaster-- How long are your standoffs and/or do you have a lite constructed motor box?? I am just trying to get an idea of your set-up and compare it with what I have and have experienced.

I have to bow to your experience and expertise Ralph, but I am still sticking to my un-seating ball or rich mixture theory Had a drippy carb once that was cleaned and rebuilt more than once. Still dripped for some reason at the low rpm band. We spent a good 30+ minutes on the phone going thru that one and nothing made any sense that you or I came up with. Wish I had more time to delve into testing my theory.