To clear up any confusion for you, according to the dyno graph, the red line is the last pull (or possibly just the best pull), pull #8. The blue line is the 2nd pull made, so at least 8 pulls were made. IMO the A/F is way too lean for forced induction, it should be low low 12's at the highest, I prefer 11.5 to 12.0, typically you will make the most power here as well anyway, leaning it out doesnt always make more power. The dotted line is just a reference for 13.0 A/F, it is only there to be able to read the chart easier. Also your #'s are in STD with a correction factor of 1.03 on the bigger #'s, which means the truck actually made 649/645 that day on that dyno. Im guessing it feels night and day different than before, good #'s regardless, but call Sean directly and get his .02 on the A/F.
Justin