This carb is pretty much a stock oem 17081226 carb. (That is another way of saying, I don't have a clue.) The carb had the 73 jets in it. My only change was to the APT setting. I set it between what I saw recommended here and the original setting, to not over do things.
I guess I need to pull the foolish thing. I runs so smooth now, wow!!!!
Jim