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On the dyno, we learned of a few issues. We had high inlet air temps and not quite enough fuel (volume and injector size). The knock retard from the high IAT's and a lean A/F ratio of 12.0 to 12.6 during initial pulls limited us only 5,300 rpm). Hauffe was able to set the fuel parameters for an A/F of 11.8 (11.0 to 11.5 is as high as a safe tune should go) after making a few pulls but the timing was also being retarded (to -3 degrees) from the lean A/F and high IAT's.