No worries at all, I definitely mispoke on the tire size so I understood your response.
Two of your graphs are showing total weight of 3,100 LBS (look at the
bottom right hand corner). Only one is showing the correct weight of 2,900 LBS (2,700 LBS car + 200 LBS driver). With that said, you are probably closer to 2,750-2,775 LBS in a stock car.
I think you are probably well above average. I am just amazed you aren't seeing knock at that airflow on 91 only. Very impressive so far.