I'm pretty satisfied with my closed loop idle and startup settings so, lately, I've been spending more of my spare time trying to get my fuel and spark tables fine tuned. I noticed that, according to my datalogs, the increase in fuel demand is greater from idle to about 4k than it is from there on up. My fuel table increases linearly from there on up but the AFR falls and by 6000rpm I'm down to the 9s. Is this what most people experience with stock heads/cams?

Here are some screenshots of a datalog from this morning that show what I mean. Status2 is the flatshift spark cut. Ignore the MAT reading. It's wrong.

1st gear:

2nd gear:

3rd gear: