My 65 came with power brakes with drums. I have a 72 booster with master cylinder and porportioning valve. It looks like the 72 master cylinder will bolt up to the 65 booster. The only thing I don't know yet is if the pushrods are the same length. I have yet to dissassemble the 72 setup. I like the 65 booster since it is smaller. I will be using the 72 disc brake setup as well. Is there anything else that I am overlooking?
Thanks