Long story short, I bought a na/tt swap. I knew it had fabbed up piping when I got it but I just found out it didn't have recirc valves. I bought some valves & full set of factory piping. Currently the only thing that is hooked to my piping is the pcv hoses. What are all the little pipes & vacuum ports to on the factory piping. I'm running a hallman mbc but will be installing the recirculation valves. Can I remove the little metal tubes & cap off the rest of the vacuum ports? Where is the best place to hook the recirc valve vacuum line to?