72 degrees vs 85 degrees, plus there was very little humidity the day of his first dyno. The second dyno humidity was almost 90% and everyone except for the first people who dynoed in the morning lost power.
And as Demon pointed out, no chip & no A/F tuning. Chang does have a chip now and that really brought the car to life, can't wait to see him back on the dyno this spring.
-Mark
