""Given the duration of lean period, and on the assumption that the secondaries are beginning to open, it seems the problem may be more than just the secondary AP. What are the current values of IAB and IFR on the secondary side? You may need to ponder the transition circuit behavior on the secondaries.""

- Since I have the secondary pump cam delayed so much, this is my guess on the long lean spot. I have delayed the secondary opening rate to 60% and I have made a few other changes and now I just need to find some time to get out and drive.
This lean spot is not an issue during most of my normal driving time. It only happens when I try to accel and not have the tranny kickdown. When I accel harder and the tranny kicks down, the A/F is fine. I am just trying to tune the bugs as they come up and this one got my attention.
I am going to test the secondary delay and see what happens.

""What are the current values of IAB and IFR on the secondary side?""
- .031" IFR's and .064" IAB's. (Same on front)

Thank you both for the replies.