One casualty in removing the head was breaking off the vacuum connections on a part that screws onto the water jacket on the intake manifold near the front of the engine. They were 2 plastic connections that the vacuum lines attached too. If I can't find a replacement part, or repair this one, can someone tell me the purpose of it, and whether I should cap off these lines or connect them? I'm thinking this activates something heat related at start up. I will get a couple pictures.