Here are the results of my latest run. Motor is stock except for the Jim C chip. Little disappointed with the HP. If you figure 15% drivetrain loss, I'm only at 260Hp at the crank. I'm also running premium fuel with probably 10% ethanol in it (mandated by state of MN). How much affect do you think the ethanol would have on power? Any idea why my Air/Fuel Ratio is bouncing all over the place? Is this a characteristic of the flapper style AFM?