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Thread: Vacuum hose diagram 1970 GS

  1. #1
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    Vacuum hose diagram 1970 GS

    Looking for a vacuum hose diagram for a 1970 Buick GS 455.

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    Here's some views from the shop manual. These don't include accessories like heater, A/C, or cruise control. Those are in there too if needed.
    Attached Images Attached Images
    What has been, can be again. (Bob Wills, 1942)

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    Unless you are going for a concourse restoration that includes the emissions devices (TCS), you don't need a vacuum diagram. The vacuum connection for the PCV is the big nipple in the front baseplate of the Q-jet. The nipple at the rear goes to the vacuum storage container (climate control doors) on the firewall. The power brake booster and transmission vacuum modulator come off the intake manifold in separate fittings. The stock air cleaner gets manifold vacuum, and the distributor vacuum advance can use ported or manifold vacuum, your choice. That's it.
    Larry

    1970 GS455 Stage1 Race weight 4025 lbs.
    TSP 470, 602 HP, 589 TQ
    MT headers, Gear Vendors Overdrive
    Best E.T. 11.54 Best MPH, 116.06
    1998 Riviera SC3800

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    Vacuum diagrams

    Thank you, just what I needed.

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