your BLMs are reading rich in general when running a maf, but the dyno shows you being very lean at wide open throttle? that screams 'something is wrong with this picture' to me.

if your o2s are working correctly, yes, but keep in mind BLMs are only good for the range that the cell operates in.... so if you're expecting trim data from cruising to be valid at wide open throttle and high rpm.. well..

i think you have quite a bit of information that needs to be analyzed properly at this point, and stop just trying a whole bunch of different stuff trying to patch it together.

i really do think you're trying to patch a mechanical or metering problem with tuning, which is a very wrong thing to do.

so lets make sure you're running on all 8, dont have exhaust or intake leaks, your fuel pressure is solid, and all your sensors are measuring correctly.

if all those things were OK, it would NOT be doing this.