everyone says 2nd gen vehicles. w/minor mods, should use 10 micron fuel filters, rather than 7 or even 2 micron. I have 2001, 1/2 in fuel line from tank to IP, OEM pump mounted on frame rail and maintain 13lbs idle and 9 lbs WOT. gauge is reading at the IP. surely with this volume, a 6-7 micron would still allow sufficient fuel to flow to cool and lube IP. thx to all. above numbers with OEM 10 micron filter. truck has power puck, bhaf and 4" magnaflow system.