At wits' end ( short trip )

[Some Fool]

Working on an LS swap ( junk yard 6.0L LQ4 with 317 heads ) with 4L80e ( unknown history ) with 0411 computer (OS 12212156). It starts well but goes lean (15.5-16.5 AFR ) as it warms up and stays that way when driving ( afraid to drive it too far ). We are running a MAF. I must be adjusting in the wrong table or something because adjustments to the "open loop VE" table don't seem to help? What am I doing wrong?
Any help is greatly appreciated.

Attached what I am working with if someone that knows what they are looking at could look it over...

Thank you in advance,
Some Fool