I think you have to be scanning "calculated airflow" as well.
I wouldn't worry about what your ltft is. As long as the pcm still has room to adjust it, which it does in your case, I wouldn't mess with it.
I would change your commanded pe. Fueling>power enrichment, and there should be a table that is commanding pe Afr vs ect. I can't for sure remember if that is the correct table. But you need to lean that out. If it's at 10.5, change it to 11.0, and see what happens.
10.5 is too rich for gas. You can cause kr from being too rich too. 11.5-11.7 is where you should shoot for.
