Check the timing.Retarded timing will make a engine run hot.Maybe a cracked cylinder head or leaking head gasket ? Years ago had a friend that removed the radiator from his Dodge roadster.Car had a Ford flathead engine in it.After sitting all winter,he reinstalled the radiator and was having overheating problems that he did not have before.After removing the lower radiator hoses,he found a mouse had built a nest in one.He cleared the blockage and the overheating problem went away.
EvilDr235