PL question....

[1987GN]

I ran a few logs last night and noticed the a/f graph seems to bounce around a bit.  Stays mostly between 10-3 to 11-8.. Is this normal?  Thanks John

[Steve Wood]

at wide open throttle, it should not move too much...

At cruise at highway speeds, it should not move too much.

At low speed driving it will move more, but, that is pretty rich as i would expect it to be closer to centering around 13 or 13.5 but moving back and forth