Why is a BDS EFI kit sold by horsepower ratings?
The BDS EFI kit is sold this way in order to provide enough fuel to produce the required horsepower, as each motor requires a specified amount of fuel to make each horsepower. For supercharged motors this number is .6 of a pound of fuel per hour for each horsepower. For normally aspirated motors, this is .45 of a pound of fuel per hour for each horsepower. The fuel flow requirement can be calculated by multiplying each horsepower by either using .6 or .45, regardless of the cubic inches.
