There are a few ways blower companies address the need-for-more-fuel issue that a supercharger creates. New FMUs, reprogramming the injector pulse, an external fuel pump, or larger injectors are all ways to add more fuel. Powerdyne opted to use larger injectors in the kit. Actually, they are the same ones used in the factory supercharged Cobra Mustangs. These go in with the least amount of hassle, and since they are a Ford part, Powerdyne knows they will work.