yes you need more fuel when your in boost not when your putting around on the interstate because im pretty sure that when im doing 80mph on the interstate im in vaccuum not boost so why would i need more fuel if i dont have the air to compensate, so im not talking about fuel throttle 10psi rich as hell, im talking about 1/8th thottle cruisin for good gas mileage, that only makes sense since we are talking about gas mileage