Sounds like a perfect case of "If it ain't broke, don't fix it."

You may be very lucky in getting good fuel, although you don't mention when, if ever, you've had to service the fuel pump filter. It would be wise to relocate the filter to after the Dahl, it takes two feet of fuel hose, a few clamps and a butt 3/8" hose connector.
The Dahl is a fine unit. People use "Racor" simply instead of typing "primary fuel filter." It's shorter!
