#107649, "RE: Need some help with my fuel system " In response to In response to 7
There is no correct fuel pressure. Run what you want to get the flow you want. Realize that the flow characteristics for your injectors are rated at a certain PSI.
Additionally, look at the flow of a 5/16" line. Then calculate how much fuel you are going to be injecting through 4 injectors at your theorized maximum pressure and duty cycle. Compare the two. This is all basic stuff man.