I am having trouble at about 3,000 RPM the boat cut outs and sputters. Last year I replaced the High Pressure side of the fuel pump and it ran fine till the end of summer, now I am concerned about the low side. I cannot locate the specs on the pressures for the low and high sides of the pump. Looking for this information before I put the gauges on it and start checking things out PN 3861355 and 3860210. Any other suggestions if the pump pressures check out ?