best thing for any car to handle better is stiffer springs stablizers and frame, for road use the car isnt it's self that bad, though it is a boat, as a daily driver just put on a good suspension kit good brand tires and if you want that little extra touch camber the wheels (this assuming since a restoration aint cheap, you have the cash to spare) you cant really do that much to such a long frame and you'll have to get a good balance (frame stiffness for drivability) because if you go overboard you're going to kill the tires as for the chevelle and nova, same advice, but it's a shorter frame and you can get that perfect balance easier. (this is if you're going modern look, personally i'd keep it as stock as possible, looser suspension so you can get that ass end out on the corner)