I'm running a .815 fith gear, a 3.73 final drive if the order code on the trunk is to be believed, and tires that run my car 10% faster than stock. My timing might be a degree past stock. I do accelerate at 80% throttle using the 3000-4000 rpm range and glide with the engine on in 0 net power requirement situations (downhill, rolling up to a light,) but that is normal for me. I'm surprised because I normally see my fuel economy drop like a rock at high speed. I need to get around to installing my MPGuino to figure out what is going on.
Working off this chart (the previous engine is the 7a-fe or 4a-fe) my lowest BSFC is still quite high.
My commute hasn't changed, I actually have to deal with more traffic now vs the spring.