First thing that comes to mind is a bad fuel pump.Oil smell like gas? You should not have to pour the fuel in.I had a 62 w/361 that acted much the same.Fuel leak in pump caused the lifters to collapse and no start.Check position on #1 wire on the cap.You are sure the wires are connected in the right direction? Eng can be extremely dirty and run fine.Same with a low cyl or two it should still run.