Hi all, I'm on with converting my p6 from su's to holley and need to change/modify a few vacuum hoses etc, does it have to be made out anything spaecial because I've got a reel of rubber air hose that will do the job perfectly, it's the sort of stuff that we use to make air tool hoses up with about 4 mm wall, it might even be the same stuff that's used for oxy acetylene bottles, any advice welcome,