okay ive found out that my o2 sensor is stuffed,its a vx civic so it has a 5wire 02 which r very expensive.I have a safc but that wont work right cause its got cell 48 So i was thinking if i put a rising rate fpr instead will this provide good anough fuel for 6psi?will i have to change this when i put a new 02 safc 440cc ?i dont wont to buy things for no reason so if this will help latter on to then i will buy it.What fuel psi should i run

 

the FPR is good for 6 psi, but if you are going to put the S-AFC with larger injector later on, the FPR isn't needed anymore.