I realize that the LP is a problem for many but after all my research I have found that the LP isnt as bad as many think and it is actually a good pump. The big problem with the fuel system is the size of the fuel lines themselves. Way to small. How many have taken the time to check out the size of their lines? If you think the are all 5/16" you are wrong. I was amazed to find out that on my truck from the fuel tank to LP was 5/16" and from LP to filter housing was 5/16". BUT from my filter housing to the VP there was a section of fuel line that was actually 1/8"!!! Yes that right 1/8". You couldnt breath through that. Now after sharing this I read that some have found this dreaded 1/8" piece to be between the LP and filter housing, too. The only reason anyone came up with was that maybe it was to reduce VP pulses to the LP. Dont know except that the LP cannot survive like this. With this puny factory setup the LP is forced to live its life in the bypass mode which inturn eventually forces the internal bypass check ball to hammer its way against the LP housing and spring untill failure. So by opening the fuel line sizes to a straight 5/16" which is OK or to 3/8" which is better or to 1/2" which is best then that allows the LP to supply the VP with a constant supply of fuel and actually raise pressure readings. I know this sounds totaly against what everyone already has read but it really works. Yes the fuel tank is about even with the LP but try this, take off your fuel line at the LP and tell me that diesel doesnt run all over you. That means that the LP doesnt have to suck like you think.
There has been so much talked and tested about the dreaded LP failures and many have come up with what they feel is the best solution but after all the reading I have done (which equals to many many hours) the stock LP is pleanty good enough to deliver fuel for around, I believe it was, 375 HP with high flow banjos and at least 3/8" fuel lines all the way throughout. Any more power and you need a bigger pump with 1/2" lines and no banjo fittings.
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'01 2500 Sport 4x4 5spd, EZ, straight piped, no sillencer ring, aFe intake, 2 lo kit, Dakota FP/Isspro Boost and EGT all on pillar, Raptor 100 with big line kit, Pac Brake, 285's