Thanks for the replies. Makes sense to me now. I need a bit more info on the air inlet (1955 Second series). I think this might be my problem as I have "top soil" in the space directly under the vent drivers side. Horrible mess. I have cut access holes to get it dried out. Should that cavity have a drain hole? This piece does not look patch panel capable. I have been warned not to do any fiberglass reconstruct so not sure how to tackle. Previous owner made a mess of it. Thanks any ideas. By the way, what exactly is the "cowl" specifically.(stupid question) as I don't know what the door post (hinge side) and the inner fender "skirt" is called exactly. I should take a picture.