The A/F meter on the dyno wasn't working correctly, so thats why we couldn't do any real tuning. The difference came from a minor a/f adjustment made in between runs. My car will be back from Cali in about a week, and after that it's going right back up to RZT for tuning and dyno time. I'll make sure the SAE and A/F plots are in there, just for you Ash!