In my restoration of my 74 Super Beetle I have finally gotten to the point of putting gas into the tank for the first time. I have removed the charcoal cannister from the rt rear wheel well and the line is open to the tank,. There is a terrible gasoline fumes odor in the trunk/ gas tank area and I am not sure where it is coming from. There are a few vent lines connected to a long rectangular plastic box that has some purpose. I would like to hear from anyone that has removed some of this gas line plumbing or experienced any similar problems that can help me source the leak of the gas fumes.