I need help! Info for 1972 Valiant sedan

First off welcome to the site! You will have to excuse some of us! We tend to not have the best manors towards newbies especially when they start talking ls swaps in their first post! Haha. Its all good tho nice car btw I love valiants. Like mentioned you have (more than likely) a 904 3 speed. The rear end is a open diff thats why it only spins one side. Take it from me just drive it and enjoy it don't worry about power 70 is the fastest you can go legally anyways. Unless your building a race car of course. But for a street car keep it stock keep it simple and drive and enjoy it. The more you add the more trouble and frustration it becomes and more than likely you will get fed up and sell it. Enjoy the site and the car bro! Hope to see you around the boards