this peice is like a line driver for an amplifier, ups the voltage to 17vdc @ the pump where larger wire and a relay you MAY seen 13.8vdc. if the battery is getting a decent charge 14v-14.4vdc. The other draw back is the correct way to utilize this is you will have a small spike in a/f until the hobbs switch from a source of vaccum reach boost, or a certain level of sensitivity. Many people will ask, why not run it the whole time? to tell you the truth, I can't truthfuly answer the question, I was just told by pump engineers that it's not a wise idea for the rest of the fuel system.
i have seen 375 LPH supply enough fuel to 55lb low impedence injectors to 805hp. 386 LPH should be more than plenty for reaching your goals unless your lines/fuel rail(s) are too small.
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