Good to approximately 900 hp. With over 4 years of severe testing you cannot find a better value. It seems some people never take into account that when adding more air to the engine , you must have fuel to go with it to make power. It is urgent your fuel system keep up with the demands of a performance engine, both in volume and pressure. The first step is to choose the right fuel pump.
Most manufacturers rate their pumps at a certain pressure.
The chart below will show you the effects of fuel flow, versus pressure rated fuel flow. All models were tested by this company with a consistent 12 volt charging system. We carry the Pierburg Hi Pressure Fuel Pump. These are the same ones we use in our supercharger and turbocharger kits. They also work for low horsepower applications as well.