The size of the injectors and turbo dont mean that much considering the tune keeps it from pouring fuel down the motors throat when not at WOT
A force induced car tends to get better gas mileage (when not romping on it) because its more efficient and generally the car doesn’t have to work as hard to get going.
I thought my gas mileage was going to be horrible, because of the cams but they dident make to much of a differance
I’m seeing 4mpg more than I was last year even when romping on it because i dont have to keep my foot in it as long to get up to speed :rofl