Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

I prefer to run a separate return line and not use the bypass at the pump. It’s more work to do it that way, but IMO you want the pressure drop at the regulator and not the pump.
Ok thanks, I found this looks like it would make a return line easy without dropping the tank. Some say you need it close to the bottom but away from the sending unit. Other say on top opposite of the sending unit or supply. My current return is in my sending unit going straight back into the tank but I cannot make it any bigger so alternate location would be needed if I need it

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