In my log the Desired AFR is around 13.8-14.1 for the entire trip. Is this normal? I thought after warmup it mostly sought 14.7? Are these tuned rich or is it adjusting to this number (although it never started higher and then moved down to 14.)?

This is in a 95 K2500 HD 5.7 TBI 100% stock.

My long term trim (BLM) is a bit high 135-140 thru most of the log as well. Just normal back road cruising.

fyi- I am trying to track down a high knock count if that is relevant.