Linkage set up on 1974 Plymouth duster with 318 automatic

Here is a picture of the old carb and linkage before I took it off

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Ouch. That's a mile off as well. I'm surprised your transmission still works. Let me post up some more photos of how it should look. Like mentioned. The pin on the carb linkage should be at the back of the slot. The spring should be positioned to pull the rod against the pin at all times. A couple photos don't have adjustable slotted rods but there are adjustments on the linkage.

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