I decided to put in a vulcan big line kit and Holley blue. I read the specs on the holley blue, and MAX psi is 14. Is this enough? I was going to run it alone, (no LP on the engine) Thanks

 

I'm going thriugh the same thing now, but I have the Carter black, i've heard from some people that it will be good ennough and some say not, the add foe the pump on summit says 18psi, if this pump isn't good enough i'll try the holley blue or the walboro.

 

I had my stock lift pump on for 104 K.My fuel pressure gauge said 7 psi. Never a problem.I still have my stock I.P. for 104 k. Last week I figured I was on borrowed time so I put in a big dog with the Walbro 392.Now I have 16 lb.But,,My fuel filter/ water separator is dripping.I have been working on trying to fix it, but no luck.tried everything.Drips where the 2 pieces screw together. I would say 14 is plenty.It is not psi that cools the pump its the amount of volume going to it.The Vulcan will allow plenty of fuel.

 

Have you tried a new o-ring? I also read about the ULSD shrinking seals already swelled by regular LSD, causing leaks. I am keeping a close eye on my lift pump for this problem. That juice is like GOLD! I don't want to lose a single DROP from my truck!!