external fuel pump vs efi tank/pump

I recently purchased this challenger (2022) with the intent on swapping the 318 to a gen 3 6.4 Hemi. It came with a recently installed oe style fuel tank. Im trying to decide if i can just use an external pump or is swapping the tank the only way to go.

1971 Challenger

please provide links if you are able. thanks in advance

Robert
Author: rodell