Complete vacuum system installed and plumbed. The wiring will wait until I have a control box and know where my 12v power will be. After I have power, the range of the pressure switch will have to be set to operate in desired range. In my case, at 7500 ft elevation, I cannot get the recommended -20, and will set to run -5 to -13 inHg, which gives me two pumps of the brakes and about a 20 second recovery.