I finally got a really good look at the MAF screen today when I did my Mother-in-Law'* LIM gaskets on a '98 Olds 88. I can see what is meant now by the screen having "depth," and how it'* design creates laminar flow.
I can say that after having a look at the LIM (and head) ports, I can't see how anything in the stock airbox, TB (including the MAF screen), or UIM can be the limiting intake restriction.
That won't stop me from testing, though!
(Might be a few weeks before I have any data, however)
2004 Buick Lesabre Limited, Gran Touring; Bone Stock
1998 Buick Lesabre Limited, Gran Touring; Mods: Poly sway bushings/endlinks, Tru-Cool trans cooler, Thrasher shift kit (med), PLIM, front PEM; Mods in progress: Alot of stuff, but slowly...