thought the N/A ran along the top of the wing and down thru the heater intake and you have to fit a series heater intake to the side of the wing.
Would probably be better getting a later wing off ebay and fitting that and a td snorkel. When I had my 110 N/A I couldn't get a snorkel for it. I was looking for a ex MOD snorkel as these are designed to fit the top vent.