Ram air can work...to some effect. Like your side scoop.
To make the side scoops work you would do it like Shelby did with the '66 GT350. You would cut the area back behind the scoop out, make a plate with a tube that runs to the rear brakes to cool them, and then hollow the scoop out.
For your ram air hood, there are three companues that makes a ram air hood that works to a degree. You get the most ram air from the nose of the hood.
First one was mentioned above with the Mach 1 shaker hood scoop. The second one is by Cervini's Auto Designs that I believe is more the appearance and the "I have ram air" effect.
The third is by Suncoast Creations. The fiberglass hood and ram air kit sells for $795.
But you can buy it from www.MrBodyKit.com