I am in vacuum line hell. Someone mixed up some of the vacuum lines under the hood of my 65 Riviera and it am trying to sort it out with the least amount of pain. Unfortunately, many of the tubes dont have color markings on them. Is there a way to tell what color they are based on position in the firewall grommet? Or so I have to get under the console and try to trace them through the firewall? Can anyone tell me where the 2 lines from the vacuum chamber go? One was hooked to the heater valve and was keeping it open all the time. The other connects to a black tube that goes to the firewall grommet. I assume it is correct.
