Thanks to everyone feedback. Here is what I ended up doing:
Still cannot figure out why air is coming out of it. This port is probably used to run a line from the manifold to the choke for heat choke setups. Having electric choke its possible this is not required. For now I just plugged it with red cap. Time to move on to the next issue. :-)
While you guys take a look at the attached image. Does the PCV valve shown in the picture should have a hose going into the air breather?
Saturday, October 13th, 2018 AT 7:33 AM