I have 06 f250 5.4. I've had the plugs changed. Feels like I dnt have the power when I floor it. I have 35/12.5/20 on it but I know it should have more power than that. I remember when we had the scanner on it at wot ( bare with me bc I'm not the smartest when it comes to workin on vehicles) but I believe the fuel pressure was at like 65%. Is that correct or should that be at like 100%? Any advice or tips would be much appreciated