Well Being able to draw your fuel pressure down to 0 at will is never a good thing, between the weak/old factory lift pump, small stock fuel lines, and the large amounts of fuel I was pulling, the factory set-up was no match for my right foot. Anything over half throttle would quickly pull all the fuel pressure out of the system and cause the truck to run and sound sick.
In searching for the "perfect" lift pump there are some options, I could have went with a piston lift pump off of a later model truck and swapped out my old diaphragm pump but this still left me with the stock lines. I could have went with one of the name brand pumps like a FASS or AirDog, and while they are REALLY nice and I would love to run one it was just out of my budget. So after some searching, reading, and taking advice from those smarter then me I decided on a Walbro 392 electric fuel pump. Here is a generic picture of the pump and its flow chart.
To address the small factory fuel lines I upgraded to 3/8" lines while I was doing all this. No point in installing larger lines though and still try and pick up all that fuel through the factory pickup tube. So off to Vulcan Performance i went for a draw straw II.
Also Because the pump I was using was capable of putting out WAY more fuel pressure the the front seal on the little VE pump would like (the seals don't like more then about 15psi) I need a regulator to bring the pressure down. After searching for a few days I settled on the Mallory 4307M, its a 4-Port Regulator with boost compensation and adjustable pressure from 4-25 psi, also it is less then $100 if you look around, EXACTLY what I was looking for!
Then the last little piece of my puzzle is a fuel filter/water separator, I got lucky and my dad had just pulled one off of a boat re-power he was doing at work.
Now that we have all the pieces we can start! As always I find my installs go a little easier with a few cold adult beverages, seeing as how it has warmed up outside I've switched to my summertime favorite!
The first step is going to be gaining access to the top of the fuel tank, So most of you will have to drain and drop your tank, an extra set of hands helps alot in this situation, myself I cheat!
Once you get the tank down this is what you have. The fuel line on the right is the stock pick up, The one on the left is the stock return for the injection pump.
Undo the clamp that hold the sending unit to the tank, disconnect the wiring harness and fuel lines and remove it from the tank.
I had to cut the factory pick up off at the soft line so that I would have room for the Draw Straw to make it all the way to the bottom
Then after looking over your specific application find a spot to drill the hole for the draw straw, drill it out and install the grommet that came with it.