Headed to the Dyno. Any guesses?

What did you change from run 5 to run 6. Run 6 was much better in that the peak hp came higher at 6100 rpm and tq was up at that rpm also. Run 5 was peak hp at 5700 rpm and tq was down 20 pts at comparing to #6. Run 6 had more torque at all the upper rpm points.