I spent a lot of time yesterday researching this question. I could not find the answer. If it was in there sorry I missed it. How do the gm/sec numbers corolate to MAT temp in the Inv.MAT term lookup delta multiplier vs. airflow table? I tried two different tables people posted on the sight. They were both too lean. I ended up splitting the difference between my TPIS bin and the posted. The table is pretty accurate at temps between 70-80F but above 80 it gets rich again. What part of the table do I modify? The top or the bottom? This is what the table looks like.

gm/sec Multiplier
0-----------1.000
16---------0.719
32---------0.461
48---------0.289
64---------0.164
80---------0.125
96---------0.102
112-------0.102
128-------0.094
144-------0.094
160-------0.094
176-------0.094
192-------0.094
208-------0.094
224-------0.094
240-------0.094
256-------0.094