Hypothetically, when tuning on the street (since it's impossible to make a full 1/4 mile pass safely), is there not a safe number to shoot for when making a third gear pull? Obviously a wideband o2 would be the best method, but it's just a hypothetical question.
This quote is from
http://www.vortexbuicks-etc.com/TuningBasics.htm#Engine_Tuning
"Spraying Methanol at 100%, I would expect my oem O2s to be around 780 on the street. When at the track, I might lower my fueling a bit and look for something around 750-760 mv but in all cases, I am not going to accept any timing retard on PowerLogger."