A 6-3+ground cable will be able to supply both legs in the panel. You do not need 100 amps inorder to power both legs.
You could use the 6-3+g cable for the 140 volt 4 prong range receptacle.
Conduit is required by some areas like Chicago. Otherwise it is not needed unless the cable requires protection from physical damage.
You could use the 6-3+g cable for the 140 volt 4 prong range receptacle.
Conduit is required by some areas like Chicago. Otherwise it is not needed unless the cable requires protection from physical damage.