quiestion about a stock hood with rpm airgap?

Thanks for all the replies fellows. I honestly appreciate it. My problem is that I don't have a stock hood to put on it. The hood that was on the car has a hole cut out and a big scoop on the hood. That is not what I am wanting to run. I was wantinng to run a stock hood with the factory scoops, but i may not be able to. Thats why I thought about the six pack AAR fiberglass hood. Another question is I wonder about spacing the K frame down? Thats what the hemi barracuda's and darts had to lower the motor. I don't know what would be the best, so thats why i was asking for some opinions on the matter.
Thanks, Matt