Were 428 Super Cobra Jets available both with and without ram air induction?

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428 Super Cobra Jets were available both with ram air induction (identified with VIN engine code "R") and with a standard air cleaner assembly (identified with VIN engine code "Q"). The engine code isn't what determines installation of a Super Cobra Jet engine; it's the rear end codes of "V" (3.91:1 Ford traction-lok) or "W" (4.30:1 traction-lok or Detroit Locker) that make the difference.