a/f ratio question

[StangLou]

Ok guys, I was bored today and started looking at my dyno graphs. On my a/f chart with my L/T's, my car starts at about 15, then drops to about 14.2 at its lowest point.
My question is what is a good a/f ratio for our cars?
I know the timing on mine was bumped greatly, so much in fact it sparked knocked a bit so we took it down 2 degree's and its fine. That was way back when I got the gears put in. The same tune has been on my car since then.
What is a safe a/f for our cars guys, if I can have it tuned to squeak out some more power, I could have some dyno time coming up Tues

 

[neoclasiccl]

that's lean. On a N/A car mid thirteens is about as high as you want to go.

 

[CottonBurnerz]

mine's around 12.5 all the way.. Tim told me that it will lean out once I added plenum/tb and pulleys. The ideal a/f ratio for n/a is 13.1:1 or so I think..

 

[KaPPaBaLL]

HOT HOT HOT!! Hope your car is ok

 

[StangLou]

Its ran fine for over 4-5 months like this Maybe Im reading the graph wrong or something

 

[StangLou]

DOH!!! Damn X's

 

[StangLou]

This one works finally

This is my baseline which trails down to a level you all are talking about, and yes I know its STD, SAE #'s in sig.

My graph with L/T's (not online) stays pretty much straigh across.

Guess Ill take it in Tues and do a pull and see what it looks like again

If it was that bad wouldnt something have went awire by now?