Hi, I haven't posted anything on here in a long time, but thought somebody here could help me out. I am building a fuel system for an endurance sports car. I have a sealed 0.6 gallon collector in the fuel cell with three 75gph pumps, capable of 95psi feeding it, through 3/8" hose. It then has a 10" length piece of tubing exiting the collector to the primary collector. I need to figure out what diameter the 10'' piece of tubing needs to be to prevent any back pressure to the other feed lines.