Any opinions on this dyno chart?
 

Graph looks smooth, but the A/F ratio goes rich after 5k.

With my mods and tune, I was expecting to see 310-320, but didn't break 300. Maybe it has to do with the dyno set up. Shop says it's dialed in to simulate actual driving. Not sure what STD Smoothing is??? At least I now have a number to go by for future changes.

Smoothing, in this context, usually refers to throwing out spikes so the graph looks smoother. Used to get rid of noise or if the signal naturally jumps around a lot. Ask the chart maker to explain exactly what it means. STD (standard) probably refers to the default setting (5 out of 10 ie 50%, maybe). https://en.wikipedia.org/wiki/Smoothing

AF doesn't look that bad, mine is 11.9 or so up top.

From what I read from JohnV, is that there is not much hp gain difference if you setup the AF ratio at low 12 vs 12.9 up top of the REV range. Why go lean and wear out the engine if only gaining 1-2 HP?

We both ran in 4th gear. Would that possibly cause a lower than expected output on a DynoJet dyno?

Here's a re scaled chart.
http://www.the370z.com/members/silly...no-rescale.jpg