He likely has a leaking heater core and doesn't want to spend 15 hours doing it.....Which I understand.
You can do 1 of 3 things.
1. Those 2 metal black lines have a fitting at the front of the intake. Loosen that fitting, take it to the hardware store, and get a plug and plug the intake. Done.
2. Leave the black lines on the intake, take the hoses off of the heater core and get a hose that is prebent to a 180* (checker/AZ/etc should have one). Then just connect the two black lines together and done.
3. Measure the size of the black tubes, and get a piece of pipe about 4" long, remove the lines from the heater core and connect the hoses that come off of the lines w/ the pipe.
Either way, your choice and all work fine. I would prefer the plug in the lower intake b/c it cleans up the engine bay.
Scott