Or if you are just a badass you could go with the cheaper
TRIPLE surge tank, get an external regulator, a 340 in the factory pump to lift to the surge tank, and then you could even put a 190lph in one spot of the surge tank and route that back to the factory unit to specifically power the venturii's so the surge tank could have a non pressure dump return line into the top of the factory pump, and then you could have 2x 455lph e85 pump in the surge tank and feed your 2500hp badazz motor.