I disagree, they had a purpose. It allowed cool air into the engine department just above the air cleaner intake (2 openings). It was not a "Ram Air" set up. Not sure if it made much of a difference from the 68-69 to the 70 in performance, being a small block, which ran a little cooler than the RB blocks anyway. Bigger motor, more heat to cool. I'm sure it hindered the 69 440 in the Darts and with the 68' Hemi, most used aftermarket hood scoops. Getting back to the 70' hood, nice photos of the setup, but I could never understand why the black rubber inserts on the hood, I would think they would restrict air flow.