FiTech EFI system

Which way would be better in buying the 3002, with FiTech's fuel pump package, or just getting the base 3002 getting the Walbro 450lph in tank fuel pump? My intentions are to buy a new fuel tank from TANKS set up for EFI. I'm not sure just what fuel pump that they use, but am assuming that it is a Walbro 255 unit.