1935 Fuel Tank Replace

[Dennisfly]

I bought the car with an inoperative fuel gauge (water level type) and an old fuel tank. But in a box with the car came a new fuel tank, filler tube, fuel line, serviceable electric 1936 gauge, and a new electric sender that fits the tank. I checked the gauge and sender on the bench and they work.



The question: The old 1935 tank has a vent in the top. The new 1936 does not. Attached are pictures of my fuel cap. which does not appear to be vented. Do I need a vent, and if so, can I do it with a vented cap or is there another way? The Drake catalogue shows the same cap from 1932 to 1948