Barracuda Flip Top Gas Cap Orientation?

Looking for reference or firsthand knowledge of the flip top gas cap on Barracudas.
69's have the word Fuel on them and I'm guessing that the text should be parallel to either the ground or the rear marker opening?
Right now I just have a hole where the gas door goes.
Will have a late model Challenger gas door welded in place of the original flip top gas cap.
How are your stock flip tops oriented?
Hoping someone out there can take a look at theirs and share some insight.
TIA
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