Copied 6.0 tables from a '12 2500 6.0 for the swap.
On the first cold start of the day the tps will hang right around 17% and then it seems like it starts to pull timing to get the idle down, so much it will go negative and then start loping.

If you turn the truck off then restart it the tps will drop down to 9% or so and it idles perfectly fine.

Tried a new GM throttle body with no change.

Can't seem to find a table to change that points to this issue.

maybe bad throttle body burban.hpl
FINAL 1 MIN SPARK EDIT 6.hpt