I'm trying to get a bit more fuel out of my fuel system. My procharged 93 cobra made 486rwhp the last time I dyno'd on pump gas w/ac. Since then I did some changes(intake,tuning,throttle body).It started to get lean in the upper rpms with stock rails and 42's with an fmu 255 intank and t-rex inline. I was wondering if changing to billet rails and regulator running -6 line and -6 filter after the intank pump and using the stock return line would help me pickup the extra fuel I need. My combo is complete and don't want to a complete fuel system just trying to use the pumps I have. Any imput would be helpful.