At wits' end ( short trip )

[Fast355]

Fast, I know you're a smart guy, obviously you came to realize this is smart http://www.saxonpc.com/100mm-cells-for-100.html
I end up using multiple honeycombs in intake tracts to calm the tumbling that can occur. When you alter a known good transfer function you will find it isn't accurate at different temps, barometric pressures, altitudes, humidity, etc.

Big camshafts and bad exhaust sometimes require the distance to the MAF to be changed to further away and if packaging doesn't allow this, time to switch to speed density. Sometimes a switch to e78 or e92 computers that allow dual MAF's is an option too.

I have not run across issues altering MAF transfer functions in nearly 20 years of tuning. Not saying it cannot happen, but it is not something I have seen in many different platforms. I mainly tune GM and Nissan.

I would not go to speed density, it is near pointless and not nearly as accurate. A recalibrated MAF transfer is far more accurate then the best speed density. I had two Dodges that never could achieve accurate fueling, atleast not like a GM or Nissan.

I also converted my TBI to an 85mm MAF years ago.