I have seen a couple of pictures of engine bays on here that have these vacuum manifold mounted on the firewall. I was told to talk to bishop92t and he has not answered my pm neither has anyone else that I have seen. how are these hooked up? what are the benefits? I searched the terms vacuum, manifold, and install........ and I still can't find what I'm looking for. Can someone suggest some better terms to guide my search or do you have a link to installation tips? :1zhelp: