No self adjusters.

My 66 should be the same setup as your 65. I had the same problem, took the brakes apart so see why it wouldn't stop for crap, and found only one self adjuster. The other three positions were just plain gone. According to my FSM they were supposed to be there so I wound up replacing the one adjuster I had and added the other three. Now that the wheel cylinders and master cylinder are replaced, the car actually stops! It's a beautiful thing. :)

Well, sounds to me like your car had the self adjusters from the factory, but that someone took 3 of them off. My brakes has been replaced fairly recently, new cylinders, shoes, everything but that someone forgot to get new self adjusters and ended up tossing the old ones. My problem is not weak brakes, mine was so tightly adjusted in the front that they smokes when driving a little bit. Now I have backed them off manually and can live with that for now. When I get back to that I know I can just get new ones and put on.