i tend to over think things sometime. i am putting my brake pedal in my car and was looking at the rod that comes out of the master cylinder and attaches to the bell crank lower arm, what angle should the lower arm swing in. as the pedal is pressed, the arc of the lower arm goes from level then down and if it goes farther it gets level again. i know where the angle is will make the pedal not push in far enough but what angle should it be on. or am i over thinking this.