Welp the other day my trucks started running really lean, higher the rpm higher the afr went up, started at 13:1 up to 16:1, so i was thinkin either plugged fuel filter, injectors getting dirty or the fuel pump was going out. so i replaced the fuel filter which wasnt bad at all and i just now pulled the fuel injectors out and cleaned them and put them back in..still lean so i put a fuel pressure guage on it and at idle its at 40 psi and then when i romp it about it goes to 36 psi.
I thought these should put out 58-60 psi??
What kind of pump do you guys suggest?

 

Don't forget to check your fuel pressure regulator. It is on the driver's side fuel rail about in the middle and has a vacuum line going to the intake manifold. Pull the vacuum line off after it has been running and if there is fuel in it the regulator needs to be replaced.
Yes you should see over 60 psi at WOT, about 52 psi at idle, and between 52 and 60 psi just driving around. Walbro may be a good option for a replacement in tank pump but finding one with an install kit may be a problem. Not really sure about that.