A question to all of you. I have a single vacuum line coming off of my distributor, where does it go? It runs to the fire wall and stops. A local shop opened the hood of a clients car, it had two lines off the dist. first going to a switch on the passenger fender well under the rad. overflow tank, the second- went to what I would call a thermostat housing. I do not have either. Please help! I do not know what anything is called or where it is located. Thank you all..