Installing fuel outlets on stock tank

Yes to feed electric fuel pump. A dead head one

In that case, use the stock pick-up hole and insert your pump, sending unit and one of the smaller "T" shaped Holley Hyromats to ensure that you have full fuel contact even when doing a high-G road course. It will fit right through the stock opening.

I would recommend a return style system to keep cool fuel flowing to your engine, whether carb'd or EFI.