318 MAX fuel economy builds?

greymouser7, if I recall correctly, you're referencing how it made more power with larger droplets from the carb. I don't remember any efficiency claims. My experience has been 100% that better vaporized and homogenized air/fuel delivers better part throttle power and economy -- haven't found an exception yet. As for making more power, when NASCAR mandated the restrictor plates, builders were trying to pour the fuel through those coffee straw holes for VE, then scrambling to get it vaporized and homogenized post plate.