Oops. Yeah. Of course, running at 16:1 or more at low rpm, my car is far from stock...
Ford's pitch for the Ecoboost 2.0 shows a wider range of rpms and loads where the BSFC is optimum versus a naturally aspirated motor.
Of course, that's all theoretical. What happens on the road, with varying gasoline quality, high temperatures and whatnot... might be different.