The Charger with the FiTech seemed to work fine with a Walbro 450 LPH pump using the built-in FiTech regulator at 4-bar (58 psi), but I have 3/8 return and supply on that car.
The Coronet convertible has 3/8" supply, 5/16" return (at the tank, using the Spectra EFI fuel tank with built-in EFI pump.) The pump is a Welbro 225 LPH pump (for now, might change it out if I use E-85.)
I forgot if that system is 3 or 4 bar pressure regulator on that setup? I am thinking just 3 bar (43.5 psi.)
I need to quit messing with the Charger and get the convertible back on the road for the summer.