FWIW, we've been running a Revson front spoiler on our '72 L since the '80s. I chose this one because the curvy styling seemed to complement the Pantera body, and because Peter Revson said it worked, which I've found to be true. Steering is still good at speeds that should lift the nose and make thing 'floaty' and ground clearance was not reduced. Although in the 20-or so years since mounting it and removing the spring spacers, I have managed to touch down both front lower corners (hard braking in sharp turns while autocrossing) and it definitely is fiberglas!
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