I need to know what psi I need to run through my fpr. My setup right now is a b18b1 with 310 injectors AEM fuel rail and a AEM fpr with a Guage. I am running really rich so I was going to turn down the fpr to 34psi. I just making sure I'm doing this right Cuz it's my daily. It's set at 40psi right

 

I hope you are using a tunable EMS to run the engine properly with 310cc injectors! the engine will never run 100% even with a manual fpr, you dont even need the fpr, toss it out and put the oem fpr back on and tune the engine for the injectors, thats why your running rich not cause fuel preasure your injectors are to big for the ecu. And why would you use such big injectors on a daily LS motor? whats wrong with the stock setup?

 

I got it that way so I'm just wondering Cuz I have hondata s300