I AM NEW TO THIS SITE BUT HAVE LEARNED ALOT JUST BROWSING.I HAVE A 402 BBC , I AM RUNNING HOLLEY FUEL PUMP [MECHANICAL] THAT IS PUSHING STEADY 8.5 PSI.NOW SHOULD I AD A REGULATOR OR GO BACK TO STOCK PUMP.I HAVE NO RETURN LINE.MY PLUGS ARE GASSED OUT VERY QUICKLY.ANY HELP WOULD APPRECIATED.