Ok, I see you have the low cell count filter on, and the transient filter (I presume) on...

use LS1B_0060.efi to populate the MAF correction map and apply it to the MAF table (paste-multiply-with-labels)...

let's see how this goes...

and where you see the MAF curve bump upat arounf 5250 Hz, push the MAF curve up (from 5250 Hz and up) to flow from that bump... and click the smoothing button a few times.

Save file, flash it, and take another log.