I had a walbro 255 that come with the procharger and vortech kits fail on me when I first got my sc 4 years ago. Great for return style systems but problematic in the 99+ A Svt focus pump is only about 185lph at 60 psi. The Aviator which I had after the walbro likes to pop off at high fuel pressure levels, and likes a lot of volts. The Ford GT pump is great but needs some wiring mods, it's not exactly plug and play.
Most lph ratings for fuel pumps are at 40psi. Which is not near as much as is needed for a boosted returnles EFI setup.
Right now I run the 03 Cobra tank, and pumps with a 40amp BAP.