I currently have a Racor 500 water seperator with a 2 micron filter between the fuel tank and my Holley blue. I have the 7 micron high efficency in the filter bowl. I run over 20 psi normally. I measured the fuel flow and it is well within the new Mopar flow limits. The fuel pressure does drown when the filters start clogging. I change the filyters about twice a year compared to the 10 micron which never seemed to clog very much. My background is in the military aviation and I judge my fuel quailty by the years of having to take fuel samples off the jets. I pull a fuel sample from the racor about once a month to check for water in debris from the tank, you'ed be amazed at the amounth of trash we have in our fuel systems, although it may be a North florida thing. . lol