Well I did alot of research before going to the dyno dynamics place instead of just hitting a dynojet. It's pretty widely believed that you can get alot better tuning on a dynamics than even a mustang dyno, but they read the lowest numbers out of ANY dyno and is called "the heartbreaker dyno"
Here's an article I read on it:
http://www.m5board.com/vbulletin/showthread.php?t=95056
Most people who have gone back to back from a dynojet to dyno dynamics make anywhere from 18-25% less power on the dyno dynamics.
Those are just ballpark figures and not perfect, but my car definately feels like a 240-250whp car and definately has the mods to pull that kind of power.
The operator at the shop that I went to told me that they've had plenty of 350zs that didn't break the 200 whp mark on that dyno, so I feel alot better about the low numbers.
Mods:
Cattman headers/ypipe/fastcat
custom 3" maf/short ram intake out of PVC
NWP IM spacers
VAFC-II now fully tuned
In any case, my AF was all over the place!!! On the first run, it shifted up and down between 14.5 and 12.0 about 4 times. I have no idea what's up with it being so jaggy, but I got it pretty flat at 13.4-13.9 by the time I was done. Thank god for having 24 tuning points, I really needed them all.
I'm going to get pics up of the dyno sheets soon, no runfiles with this one.