In Tunercat, the best place to adjust the A/F ratio would be in the 4 MAF tables correct?

I'm currently at 10.4:1 and would like to get back to at least 11.7-12.0 area. Using Datamaster as logs and the dyno - what's a good % to take out of the MAF to achieve 11.7-12.0 air/fuel?

I always take out -1.025% of the Maf tables and then datalog to check the changes.

You're much better off changing the PE table--"% To Change Fuel/Air vs. RPM at WOT."

Change from here then? Do I need to check/monitor my BLM's at all?

Thanks

The most accurate way would be to make a change, take wideband readings, analyze the efffect, repeat if necessary. At WOT, your narrowband sensors are ignored. You are talking about WOT tuning, correct?