O2 sensors showing good activity? Can't tell you what is normal for all sensors, but I can look at my logs if you want to compare something specific, let me know.
as far as MAF, at idle about .9lb/min,
max recorded I see at full throttle, 4500rpm about 85mph..27lb/min
cruising at 75-80mph, 35% throttle the MAF averages around 5 or 6lb/min..
Doesn't seem to go past 10lb/min unless I'm over 35% throttle..
Have you disconnected battery to reset? disturbed any ground wires?
Might omit the disabler device until it's sorted
my LTFT range from about 7% to -10%..