Proper 02 voltage?

[OneFastEclipse]

What is the perfect 02 voltage I should be tunning for on my car? I heard from .92-.94. Is this correct? At what point is the car running too lean? Also, am I trying to get as much timing advance as possible? Right now it starts at about 9 degrees and steadily climbs to 23 degrees. This sound about right? Also I have no dips in my timing curve but if they come up in the future, do you add or subtract fuel in those areas to correct it? Thanks!

 

[nine5raptor]

Looks in the right area, but ignore 02. Tune for timing advance.

 

[Defiant]

Enough to make your brain explode:

http://my.engr.ucdavis.edu/~avsmith/o2sensor.html

Also (from http://members.shaw.ca/costall/1000Q/answers-O2andEGT.htm):

"Why do people monitor the O2 sensor?
The oxygen sensor reading is one of the primary indications of the operating condition of the engine. People monitor it to try and make certain that their engine is getting adequate fuel. Too little fuel and engine damage can occur. See the ECU Primer for the details as to why this occurs.

Caution must be exercised by anybody that is depending on an A/F meter for engine tuning. There is evidence that the oxygen sensors in DSMs are not designed to be accurate except at their 'switch point' of roughly 500 mV. In other words, different sensors may give different A/F readings under the same conditions. There are also many other variables that can affect what is a 'safe' O2 reading for any given car."