I've read that you cant exceed 15 psi or it will blow the front seal out. So I found a walbrow that is good with diesel and puts out a constant 12 psi. The question I have is what about GPH (gallons per hour). What is to much, if there is such a thing?' I don't really want to do a fuel regulator if at all possible and I'd rather not go with the piston lift pump.
Thanks in advance
Justin

 

Install it and a fuel pressure gauge and see if it keeps up. I'd be surprised if wasn't way better than the stocker, regardless of any GPH rating..