He was running a much larger shot and different kit on a 5.0..different kit with smaller shot is gonna give different results. . Personally ill call Nx and tell them about your issue. .their customer service is very good and wouldn't doubt they would send you new solenoids. .but they are gonna ask if you have a filter and may blame it on your refill station. . Id get a filter and figure out your issues (which i dont think its related to pressure ) and look towards gears or a cam..