I used this one on my 72. It is a little tight but it works. Start in the middle and work toward the edges.
https://herbsparts.com/proddetail.php?prod=CHY-HIN-345
The system uses a vacuum fitting and two inline tees on 1/2” PCV hose that comes out of the front of the intake manifold. If you ever wondered what the pipe plug on the front of the 440 intake on the #1 runner was that is where the Sure-Brake is connected.