I wanted to compare airflow #s from Jordan's car and mine. We both have 83mm maf housings stuck in a stock airbox. My airbox has been modified so that there is a smooth transition into the maf housing. We both have RS4 intercoolers and I installed an MBC to as closely as possible mimic his boost curve. I was getting a 23psi spike tapering to 21.5 by 6300 and finally 20.5 by rev limit. Setting the MBC to a 21.5 taper to rev limit created too big of a boost spike.

I suck at the excel and haven't gotten MarkP's templates working yet, but I think we can get by with my grafs.

<img src="http://pictureposter.audiworld.com/72863/2nd_attempt.jpg">

<img src="http://pictureposter.audiworld.com/72863/3rdattempt.jpg">

Here are mine from 45F ambient temp (actually might have been closer to 21.5 PSI at rev limit instead of 20.5 PSI but best I have for recent logs in a given temp AFAIK):

Our IATs are damn near identical (25F-30F delta)....
<img src="http://img.photobucket.com/albums/v654/DocSlow/HomebrewStage310-21-0610445FIAT.gif">

Your MAF readings seem higher, but really hard since cars differ so much in MAF transition and such....
<img src="http://img.photobucket.com/albums/v654/DocSlow/HomebrewStage310-21-0610445FMAF.gif">

MAF is ~10 g/s lower, you flow ~10% more assuming all else is equal and our MAF readings are both reading similarly (no inflation or deflation due to transition and such)...
<img src="http://img.photobucket.com/albums/v654/DocSlow/HomebrewStage310-7-06MAF.gif">

IAT delta is maybe a touch less due to slightly lower boost, dunno, too hard to tell, seems more like 25F...
<img src="http://img.photobucket.com/albums/v654/DocSlow/HomebrewStage310-7-06IATs.gif">