I have the Armondo "10 qt" oil pan. Before installing the pan, I positioned it so that the pan rails were level (front to back and left to right). That should approximate the installed position in the Pantera.
I measured one quart of water and poured it into the pan. I repeated this, one quart at a time until I had nine quarts in the pan.
With nine quarts in the pan, the liquid was at the bottom (under side) of the windage tray.
Your mileage may vary.
John
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