Hi guys I'm back from a nice summer vacation and also with a new to me truck. Living in the mountains I decided a four wheel drive should make life a bit easier than having to chain up my dually everytime I wanted to drive it somewhere. Anyways the new truck is in my signature line. I have lots of TLC and maintenance to do but wanted to start with the fuel psi first. The truck already has a Fass 150 installed. The edge monitor is showing psi of 12 and WOT it drops to 6-7 psi. I know there is a spring on the return side that can be stretched but I would honestly rather install one that was made for the purpose I'm after. My other pot stirring debate is that the VP 44 was replaced at 136,000 miles. The truck now has 230,xxx miles on it. Should I leave the psi alone because it already has 94,000 miles on it or start throwing more fuel to it. Kind of like "If it ain't broke don't fix it."