I'm going to give it to you Joe, but I am not sure that info is entirely correct. The only Nash I know that used it was the Nash Healey because of the low hood line. The Corvair, ONLY the Turbo models.
And yes, marine is the bonus. Again, for low "hood" lines.
Your Floor Joe,
Nova, I don't think any Willys used them, I think they used an UP draft carb.