I've got a 71 Nova that has the factory external regulator setup for the alternator. The car now has a front motor plate and the old low mount setup does not work anymore. I'm thinking about mounting the alternator backwards (ie with the pulley facing the engine instead of the radiator) so the pulleys align. Couple of questions... Is is true that the old external reg GM alternators don't charge if they are run in reverse? If that's true, can I just convert to an SI or CS type later model alternator? And lastly, is the procedure in this link correct for converting external regulator to an internal regulator???