Before running a new old stock radial, one plug in each cylinder should be pulled, the engine should be pre oiled with a pressure pot, and the prop should be turned through by hand. Or without a pressure pot, turn through with starter till you get oil pressure. It's very important to get the old pickling oils out, and replaced with fresh oil to the main bearings, before putting any load to it. Crank it for a few minutes but don't overheat starter, then pull the screen and check for chunks, and sealing material.