Stoich AFR for SC 5.3L

I have a Maggy Blower on my 5.3L Silverado, the canned tune that came with it has the commanded AFR set to 14.17301. I am going to switch to the 2BARSD OS any reason to keep it at 14.1? I understand you want to be richer with boost, but Stoich can still be 14.7 right? Also, with only 6psi what should i be wanting in boost...11.8 good or closer to 11. Have read all the help files and know how to change everything, just wondering if anyone has run this setup and knows what it likes for AFR.

01 RCSB Silverado 5.3L 4l60E
LT Headers no rear O2/CAT
Maggy SC 3.4 pulley
stock diff and gears

Commanding 14 is fine during normal driving and no boost conditions.
Yes, it needs to stay at 14.7 during idle, cruise and non boost driving.
11.8 is fine at 6psi. I like to run 13:1 or so during low rpm and low boost driving, like 1500-2800rpms and 1-3psi.

Sd is the way to go, but with 6psi, the maf tune will work just fine as well.

Thanks! yeah i read the arguments between SD and MAF, just trying to learn on the truck before I boost the camaro. Do you have preferences on when to start the PE? it is set at 80 kpa now and BE is set at 100, do you mess with TPS vs Rpm or just the EQ vs RPM and EQ vs MAP. would just blending them down from 13 work? It is just going to choose whichever table is richer anyway right