I've read all of the de-smog threads I could find in the FAQ and by searching; all helped me immensely but I have a few issues on mine that I didn't see covered before. #1, my distributor advance pot has two vacuum lines that both disappear into the bag of snakes (giant vacuum line manifold bolted to the thermostat mount). I know that one of them needs to go to vacuum at the base of the carb, but which one, and what about the other line? Here is a photo of the dizzy and vacuum advance w/ two lines: #2, hoping to catch Jim C.'s attention here, since I bought his de-smog kit: Jim, in your email you mentioned two thermostat housing plugs; indeed there are two in the kit, but there are three vacuum switches on my thermostat housing - a pink one, a blue one, and a violet one. All three have two vacuum hoses each that disappear into the giant manifold and bag o' snakes. Can I get rid of all three? If not, which one remains? Here is a photo of the thermostat housing; the pink vacuum switch is on top and the blue and violet ones are low on the driver's side: #3, when I took off the air injection rail, there are two (temperature?) senders in the top of the head. The one in the middle of the head, right across from the carb, was not connected to any wire and has not been for some time (terminal is dark and dirty). I can't find any obvious wire that goes there - anyone know what this sensor is supposed to be connected to? Here is a photo of it, in the bottom center of the picture: #4 and final, What do I do with the metal line that runs from the charcoal canister on the passenger side all the way around to some valve or pot on the air injection system? I hope I can take it off and just plug the nipple on the charcoal canister; seems logical but I thought I 'd better check first. Any and all help mucho appreciated!