Ok gang! Going to make this as simple as possible. On another forum everyone is now believing that 5 psi is a good fuel pressure to run. This is being said by a supplier that sells VP pumps. Although the Dodge service manual says 10 psi is the minimum. I have recently had correspondence with Cummins on this topic and they say "10 psi is the minimum" for the engine. I want you all to know I run 17 psi and am HAPPY with this pressure. What do you feel is the proper pressure to run?