What do I need to switch to carb?

you dont need a tank froma carbed stang persay, you can have a sump welded into the bottom of your stock tank or just put in a fuel cell thats another route. i went with the sump in the stock tank. youll need some sort of ignition box like msd or a cheaper route would be a duraspark box from a older carbed stang, but there getting up there in a ge i woudl just pick up a msd 6al at teh very least and get a new coidl while your at it if ya want. good luck with the swap.