I bought a "TRU-FLOW in-line fuel pump from napa and found a "Mallory" Adjustable Regulator part #4309 (infinite pressure adjustable to 3-65 psi). I spoke with the jeep parts dealer and he made the above recommendation. Said the regulator should be mounted close to the fuel rail and dialed in to supply a constant 50-51 psi to the rail. This would allow me to use my 1983 style (new) 22 gallon poly tank / sender plumbed to the 1999 fuel rail without the rail mounted
regulator / return line. My only question I am not sure of the answer too is will the 1999 wiring harness allow me to
use the stock fuel gauge or will I need to figure something else out???

Anybody else have any opinions / comments on the above??