While I did sell my ’57 Fairlane last year, I went through the pictures of the engine and my car did not have the vacuum assist for the wipers. The wipers were simply hooked directly to the vacuum port at the back of the intake manifold. This particular car still had the factory installed 312 with the Carter 4V carb. If this car had had the vacuum assist wipers originally, the lines and fuel pump were changed out long before I got the car.