What purposes is it to put relays on radiator fan and fuel pump. Does it help even if the wires going to the fan and pump motors is smaller than the wires coming out of relays are bigger.
You posted in an area of Fordbarn that deals with questions & suggestions to the editors about the site. Few people will see your question or respond.
Fordbarn is dedicated to stock (or mostly stock) cars. You would probably get a better response posting your question on HAMB (https://www.jalopyjournal.com/forum/).
You should put your general location in your profile.