FLYNAVY30

Trying to make my chevy engine look more like....a chevy engine. Would really like to install the GM Performance Parts valve covers 25534398 and 99. The one thing I noticed is that the passenger side valve cover doesnt have a fitting for the vent line running from the factory valve cover to the airbridge/intake. Is there any way to get around this or will I need to drill and tap a hole and run the line? Any other tips much appreciated.