Dart 340 twin hood scoops

I think the best combination would be a lofty supply of air, much like a dyno room.

We noticed a rather significant gain (5-7hp) on the chassis dyno when cool air was directed at the carb during a pull. My buddy tried to recreate that by sealing his carb to the hood. Now, I'm concerned that with the boundry layer that Cracked mentioned above, this all may be for nought?

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