These plots show the relationship of the Air Charge (Vacuum) verse Air Temp (MAT).  I was looking here to see if I could observe any strange behavior.  This system has a well documented problem called 'Blower Roll' which is a surging action at idle when the air temperature gets above approximately 130 degrees.  It is much worse with an automatic transmission than a standard but it is still there.  Try idling down the freeway in traffic and you will see what I mean.   You will also notice that the response curves for the #3516  and #3523 ROMs are identical, as they should be because the calculation of air charge should be the same in both cases.

    These plot are another way of looking at the same thing.  What is really interesting here is that some of the curves have break points in them, especially when the motor is more heavily loaded.  If all you were changing was air temperature which should only affect Air Charge then why do these curves have a knee in them.  This is something that needs further investigation as it may lead to the magic 130 degree Air Temperature number.

Same thing for the 3523 ROMs.....