when testing a 99 and up 4.6 with a fuel pressure guage at idle what should the reading be , my 99 with 140,000 miles is reading 30lbs I was told thats low ? raising the rpm's it goes up very slightly ,I put a new gas filter & the old one with only about 3,000 miles was pretty dirty ! what would be a good pump for all around performance & mpg , thanks in advace ................ Mike