PMS. The 23mpg was about 90% freeway at 70mph with the cruise control set and the A/C on. We are at 600 ft elevation and the road was fairly level, just a few ups and downs.
I would venture that I could dial in a 25mpg freeway, but the car might be sold to a forum member on here; he's busy saving and I'm just kind of sleeping on it in the meantime. If he falls through, I will keep it and tweak it further with the dual wideband, tweak the fuel pressure a little more and throw a powerpipe on the thing while I'm at it.