OK, I understand we have a pressure regulated fuel system but will putting a 340LPH pump cause any driveability issues? I'd hope the pressure regulator can keep up with the pumps output. Just wanted to make sure. I believe a lot of you are running Walbro 255s on full stock cars so I don't think I'll have an issue. My concern was the pressure regulator not being able to regulate the extra fuel and me ending up with high fuel rail pressure and incorrect injector flow.