[Sams0n]

Well, I'd argue that Ford didn't use the airbox because it's the most efficient design but because it's the best at keeping foreign objects out of you engine. The box is restrictive, especially at higher rpms.By your theory, forced air injection vehicles would get the worst gas mileage versus naturally aspirated engines, but for some reason they don't. You're welcome to believe what you want, I certainly won't stoop to knocking your intelligence and I am no expert, Ijust think perhaps there is more to the equation.