98' Challenger 1800 Carburator Replacement


So I have been trying to get this 1998 Challenger 1800 running. The boat shop said I need new carbs because the old ones were modified and they don't know what or how it goes. I bought new carbs 2-mag, 2-pto from different vendors and keep getting the same thing. I don't know if the design was updated or what but I keep getting the same type, and they are different then the originals. I need some help not sure what to do at this point. The black set is the design I keep getting with the OEM PN# IMG_20240523_083819465.jpgIMG_20240522_210759219.jpg