Ahh.

'On ya, Bill!' as we say in Oz...

I dialed my AFM back or forward a notch or two, once- in the long run it wasn't a good thing to do. I can't remember why, but I had isolated all the variables to get it nailed. Personally I would never keep an AFM, its so cheap to add a Miller MAF or a Megasquirt, and a new O2 sensor these days...