My 255 in tank is not keeping my AFR's down where I want up near my shift points.I don't have a fuel pressure gauge in the cab but I see it happening with my wideband.My tuner said I have enough injector left so my limiting factor is my fuel pump.

Here are some options I'm looking at, tell me what you think.
1. magnavolt booster
2.inline pump addition
3.second walbro on Hobbs switch
4.bosch in tank pump that out flows walbro [ Really would like to go with the bosch,seems the easiest]
5.lower fuel pressure with regulator and change injector settings in pcm[shot in the dark]

 

I'd just try the magnavolt first before you go adding/changing pumps