FiTech EFI system

Yeah, close dimensionally but a fairly large difference in cross-sectional area.
-6 (.375" dia.) tube/hose is 44% larger that .3125" dia. tube/hose in cross-sectional area, so theoretically should flow 44% more volume. Correct?
Im no rocket scientist lol. Id google AN horsepower support levels and you'd be surprised what relatively small hoses can flow. Efi has alot of pressure also...different than 6psi with a carb. I dont really buy the 40 percent increase from just 6 to 8an. Psi has alot to do with it also.