The stuff is in the stock code for using an IAT timing correction.
I used the setting from a N/A bin file, intially.
Yes, it does work.
There are two parts to it the spark bias, and the spark table.
Reflocating the IAT post turbo allows for IAT/MAT changes due to Intercooler heat saturation.
Everone knows you can't do a MAP 148 <g>.