The vacuum line routing for a 1975 Dodge 440 typically involves several key connections. The main vacuum source comes from the intake manifold, which supplies vacuum to the brake booster, carburetor, and various emissions controls. Additionally, there are lines that connect to the distributor advance, air conditioning controls (if equipped), and other components. A vacuum diagram specific to your vehicle model can be found in the service manual or on a label under the hood for detailed routing information.
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