My 1965 Mustang coupe, 289, had an unfortunate incident. I left the lights on over the weekend and arrived back at the car to find it completely dead. I had someone jump me and drove for a while, not long enough to get a decent charge, and shut off the car. The battery had not charged so i had another guy pop his hood for a jump. I being somewhat dull witted, hooked up the cables backwards! I know stupid! So the alternator started smoking! and I quickly unhooked the cabels. after examining the battery cabels, alternator, ect. I decided to try another jump. This time the car started right up! I drove the car home for about an hour and a half. Shut it off and it stated strong. After sitting for awile, no start. I tested battery and alternator, both were toast! I replaced both of them, and the car started fine. Again after a couple of hour of sitting, no start. Had the electrical system checked at a local auto parts store, and everything tested strong. No problems were found. Strange, so I checked and cleaned all electrical connections. And car started and drove fine for about a day (maybe 6 starts over a course of 8 hours). Anyone have any Ideas about this!? Do I have an electrical drain somewhere? Any advise would be greatly appreciated!