If you had to cut out peices of the bracers to make the hood scoops functional, obviously, you would be sacrificing support, the only other downside is it might be hard to make it a clean look from underneath. And for the functionality part, I would only do that if you made a ram-air type setup. With hoses, or some type of plenum, running straight DOWN inside the carburetor. If you just cut holes in the hood, and mount the scoops, the air can actually enter the engine bay with speed, and flow horizontal through the air filter, causing it to want to pass over the carburetor, which can restrict air flow. For this being a noticable effect, I am not for sure.
