I forgot to add the weather was horrible that day, it was raining outside, the B.P. in the dyno room was reading 26.35 most of the day and the humidity in the dyno room was 34 %, air temps where cool, under 65 F. The dyno operator pointed out that the correction factor was 118 % during the tests, he said had not seen it that bad before I've always used that dyno in the cold of winter, not intentionally, but that was when I could get the motors on it. It would be at or under 32F with a high pressure cold front blowing through I had ran into similar weather conditions down in Ontario,CA on Vrbansic Brothers DTS dyno once, it was raining outside and the motor on the dyno was down on power(by 20 to 50 HP) compared to other motors I had built using very similar parts and build specs. with better weather The customer is happy so I shouldn't be crying, should I