Here is my build for my 78 F350. I had several goals in mind. Cure the quarter tank slosh issues, remove air and water, redundancy in case of failure, and a good price.
It is basically in 2 sections. The "low pressure prepump" and "higher pressure pump". The first section is also the accumulator and air separator. Depending on your choice of filters it could be your water separtor as well , but I chose to do that in the high pressure end.
Each section uses a Baldwin FB1311 filter base. The first section uses one modified with a dip tube and a bleeder port.
Carter 4600 low pressure pump used to suck fuel from the tank and push it into the modified FB1311 base with a Baldwin High Effeciency filter. This filter holds 2 quarts and dip tube is set about 2.5 inches from the bottom. The base has a -4AN bleed port that runs back to tank.
This section acts as the accumulator and air separator. As fuel enters the filter housing and fills it up, excess fuel and air can return to tank via the -4AN return port. The out port has the dip tube. This is the port the high pressure pump pulls from. By having the dip tube, it can pull from the bottom of the filter giving you a 2 quart reserve capacity to cure the slosh issue in the main tank!
A Carter HP4601 "higher" pressure (bout 15 psi) pulls fuel from the output diptube port of section 1. This goes into a unmodified FB1311 base and a Baldwin fuel water separator. Then it goes to my VE pump using a Russel -6AN to straight O ring 10 x1.5 swivel fitting. Pressure gage can be added here as well.
Since the 2 pumps have the same flow rate and the HP pump has no return, their should be no problems.
Baldwin FB1311 bases (Grainger)
Baldwin filters (grainger)
-6AN male to -10 straight oring (Summit brand from Summit)These are for the filter bases
Carter 4600 and HP4601 fuel pumps (summit)
Russel -6AN to Metric 10x1.5 Swivel for VE Pump (Summit)
-6 AN Push Lok fittings and hose (locally)
Now for Pics!