New to the Tbird life, my 66 has a bad take off problem. I can feel the brakes dragging; at least they feel that way. Once I take off, the car pulls along and then you feel a surge or release. I can stop then accelerate and you notice it. It is not an engine hesitation but a restriction. The e brake will not go up or down. There is a small lever by it, that when activated makes a vacuum sound. I did find a hose that attaches to the assembly but did not find a hook up that was visible. There are 2 units under that dash that had vacuum hook ups. I have ordered the shop service and assembly manuals, just have not arrived yet. Thanks for the help