These picture were supplied by other members,
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I have seen slight variations in these from exactly in front of the hood bumper to very slightly inward.
I only have my 75 duster nowadays, and have never seem anything to suggest a factory hood pin location on any 73-76 dusters I've seen. Which won't affect you.
Note the cut out to enable access to tighten the pins, also factory duster pins had a special nut to make installation easier, reasonably priced reproductions are around.