Looking for a vacuum hose diagram for a 1970 Buick GS 455.
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Looking for a vacuum hose diagram for a 1970 Buick GS 455.
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.
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.
Thank you, just what I needed.