I twist my wrist hard when I can and I still get close to 50 mpg most of the time. I run Freak , 155 mains ,48 pilot, open stock exhaust, and no AI. Quite a bit of mileage depends on fuel too. The ethanol blended fuels tend to lower mileage and that is proportionate to the amount of the blend.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!