Ahh my apologies.
I found this to be a very good read:
Fuel Economy Tuning - Tech Review - Honda Tuning Magazine
According to their brief tuning experiment, between the best and worst cam angles is around 3% improved economy
as well as more power. Whether or not I can actually make use of this is another matter.
Good tuning tips. I'll see about getting a custom cam down the road. Correct me if I'm wrong but I don't think you can just grind an existing cam for more duration, because what you really need is more material on the cam, not less. So this would be a custom billet cam.