FWIW, the Pantera by design already 'sucks' air from under the car up through the engine compartment and out the engine screen at top. The suction is so great that it sucks gravel and dirt right off the road and deposits it onto the inner frame rails in the engine compartment and the rear deck lid.
I'm actually interested in limiting the air/dirt flow through the engine compartment by use of a bellypan or lower covers for the front of the engine compartment. I'll experiment once my new engine is back in the car.
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