Gas pedal broken? 72 fury iii

I have a 72 fury that I acquired when my dad passed away. I don't know a whole lot on cars, especially older ones so hopefully someone can help. I went to go drive her today, and as I pressed the gas pedal, it snapped and the pedal went to the floor. I don't mind getting dirty and trying to do the job myself, I just have no idea what part I even need, or where to look. Google hasn't been too helpful. Any help in pointing me in the right direction would be greatly appreciated.

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Author: IMFURYS2