With what ignition? With a stock Chrysler electronic, you run the risk of burning out the box- they're only made to handle a temporary 12v. load at startup. There are aftermarket boxes designed to carry a full-time 12v load, with an appropriate coil. With points, the condenser helps protect the points, but you run the risk of cooking the coil. Aftermarket systems, such as MSD or any of the HEI-based systems already are designed to run at a full 12v., but with a different, appropriate coil.