2010 challenger r/t

[robinator]

I am trying to get used to my new tuner and trying to go about it carefully. What is the difference between the 91 octane and the CFI 91 octane tune? ...(maybe was CAI)?
Also, if you set the WOT to 2% rich is that 2% of the ideal 14.7 which would make it 15?
One more thing (for now). What does the Cooling Fans AC off (and on) do and what settings are advantageous?
Thanks
...oops....i guess the 2% would be minus to make a richer tune.

[mikel]

the CAI tune is a tune for use with a cold air intake which adds a little more fueling at WOT.

Thanks