I am converting to a p-pump and a buddy of mine gave me a 160hp pump rebuilt 0 miles. My question is what can I do to the pump to get good fuel mileage and towing response, i routinely haul 6 or 7 horses up on the applachian mountains. Or should i just get a different pump. I am also buying a set of rv275 injectors what pressure should i get them popped at for the p-pump.