Fuel pump

I would look at your fuel rail. If it has a return port and a FPR (doubt it does) than I would use the one with a return port.

Pretty sure your factory setup was returnless. I know the later cars, even the Hellcats were.

I know some swear by a return style fuel system when getting into big horsepower. But it sounds like you aren’t anywhere close to that level. So I would just get the one without a return port and run a single line to the motor.