Thanks for verifying the original info and adding to it.
I'm impressed there is enough "tolerance" in the factory ECUs to allow some of this MAF and injector juggling. I've gone the megasquirt route on a couple motorcycle EFI conversions -- but would prefer to keep the daily driver "manners" of a factory ECU for cold starts, idle control, etc. It all s a huge investment in time and trial and error to get a stand alone truly to the "factory" levels of drivability vice "good enough" as a hot rod or weekend warrior.
This sounds promising...