using 14.047 for desired AFR and not 14.63?

[SSpdDmon]

After you save the tune values will change slightly.
Example:
14.4AFR becomes 14.42AFR.

Don't forget to change the fuel settings in your WBO2 controller to match
your new EQ1/Lambda1 and any cal_pid formulas you have relating to EQ/Lambda.

Correct. Stoich is always 1.0 for lambda/EQ no matter what the fuel (gasoline, E10, E85, etc.). AFR is what changes and why the WB controller needs reprogrammed.

What get's tricky is logging EQ...

It's not a linear output like the AFR voltage equations are. Further below in this thread, I explain further. With a little work in Excel, the equation can be discovered. With that in mind, it's also important to keep in mind what you really put in your tank so you can set B3601 accurately...

http://www.e85mustangs.com/regions123.html

Because they mix it up at the pumps.