fuel pressure? for the racers...

Update::..well i found another new regulator that i forgot i had,installed it set fuel pressure and watched it slowly fall off..called the Holley tech line he said it was the fuel pump,called Summit and ordered a new one should be here Saturday,in the mean time i removed the fuel filter before the pump and cleaned it,and blew out the line with compressed air all the way up to the regulator,we'll see Saturday if the pump was the culprit..