Most of the vacuum hoses you see are from the Confortron (The A/C / heater system). The headlight plumbing is fairly simple. IIRC, one vacuum line going into the switch, two going out before being split into the two headlights canisters.
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When I was at the vintage auto races at Road Atlanta, some guy took a bunch of photos of me driving around and put them on a website. A friend of mine just came across them by accident. The author obviously didn't know anything about Toronados but his pictures are good. http://www.car-revs-daily.co...