Anyone put a fuel cell in a 64-66 Cuda? Bad idea? Fumes?

trapster said

There is only a small difference in vapor barriers between the fastback and any car with a trunk.

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The "vapor barrier" is the trunk floor. THERE IS NO vapor barrier in any trunk car. It's a piece of cardboard, and the rear seat. Plus, the rear speaker holes / package tray is not sealed either LOL