That should take care of that issue. I would remove the pcv and vent from the covers. Plug one side cover start and run the engine. See if you have pressure or vacuum at the other cover. If vacuum you know the intake is still not sealing. There should be a small amount of positive pressure blow by gas. If there is a lot then you can be certain there is a ring sealing problem.
i'll do that next time i start it, and pull the carb and look for oil in the passages, and report back.
