[TaurusKing]

Yeah, they usually come with the 1\8" clear plastic tubing, same as the oil pressure gauge has,, uses compression fitting on back of gauge,, as far as running the line, sometimes you can use the big grommet thru the firewall near the steering column. Or the shift linkage, speedo cable, if applicable.. placement in the car pretty much where it can be seen and not in the way.. i see a few cars with the gauge package running up the pillar.. tee it into a manifold vacuum line, mine I hooked right to the vacuum tree, also I used 1\8" rubber vacuum line instead..