Someone please help me

Everything is stock on the 318 Mopar except for the fuel pump the distributor water pump and thermostat along with the original V6 Mustang radiator, buddy of mine said it came from a 83 d150 came with 727
What carburetor? 2bbl or 4? Everyone here is trying to help but your not giving us much to go by. The term "stock" doesn't help at all since there are tons of variations of stock.