Ok, lets all say this together. FORD DOES NOT CALIBRATE METERS TO INJECTOR SIZE. It is all done in the computer. Lightning meters are just that, meters. not calibrated to anything. Everything is in the computer. You have a choice of an aftermarket meter for larger injectors, an aftermarket tuning device(to use any meter and/or injector you choose, a custom tune/chip, or get the matching computer for the injectors/meter you want(you will be very limited if you choose this method). Any questions?