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What do you mean by serious nitrous system? I plan on using the nitrous every time I am at the race track. If that is what you are implying as serious, then I will gladly set up a fuel system with a return line.



For a plate system your pumps will be fine. What the return line deal does is keep fuel cooler and flowing and prevents deadheading which is exactly happens until the fuel solenoid opens for the N2o system. With the fuel pump running and the fuel stagnant the fuel in and around the pump and the pump begin to heat rapidly-not the best thing to happen. If you get a single pump with a return this won't happen. You could probably Y your two pumps together and use a return style regulator. I'm sure this would provide plenty of fuel for both the nitrous and the motor. You will need a second, non return style reg, for the nitrous side as the nitrous pressure will probably differ from the carb side.