It has the injector system, I've read a lot about people removing them. I did notice a brownish clear tube up by the top of the engine above the choke that has been clipped, and isn't connected to anything. It's only about 2 1/2 inches long, running vertical.
the carb should have 2 of the "vents" they are brownish, one on each side, and should point downwards, and yes they are just "open air"
originally they ran to little holders under the bowl screws, that held them in place