the one with the large opening goes on first, so it is against the metal reed cage
Then lay the solid (flapper) one on top
followed by the stock metal bit that only allows the flaps to open so far
Now the carb vacuum will pull the flap open and allow air to flow
I just installed these on my LT80 build I took some pictures, however they are not of huge help here
1990 LT80 Rebuild Craigslist find!
from left to right install the parts in that order, 2, 1, 3 if that makes sense
please ignore the camo crocs