Are 93 3.0 injectors high or low impedance?

Also they are 19lb/hr correct?

I'm planning a turbo project. I calculate that 27lb/hr injectors should be good for 325-350 hp. Sound right?

I'm thinking of a 20g turbo which should be good for 400hp. If the 27lb/hr's can't keep up what is the next step?

Thanks
David