Linkage set up on 1974 Plymouth duster with 318 automatic

Your kickdown rod needs to be extended ~1 1/2" to get you in the proper adjustment range. Either fab a new one or cut and lengthen your existing one.
If you don't have a welder, the easiest way would be to cut the rod in the middle and thread it, then use a long coupling nut to rejoin the two halves, which would also give you an additional place to adjust the linkage. Then secure it with a jam nut.
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BTW, you do have the correct carb linkage adapter on there, right? I can't tell from your pics...