There is a support inside of the hood scoop mesh area, it connects down and is what keeps the scoop on. When people take out the mesh that's when you lose the support and it flies off.
If you really want it functional. Cut a hole in the hood from the bottom. Then drill holes through the mesh area to the part blocking it, but leave the mesh in.
Also the only thing that'll do is blast air into your manifold, which really won't do anything since it won't get hot enough, unless you are supercharged with a twin screw. Also it'll get super dirty. If you want it to be functional the right way and feed air to the intake you want a Mach 1 hood and shaker.
Bullitts are better than Bullets
Faster than a speeding...............
2001 Bullitt being prepped for track duty
Corners > Straight line
HID end all thread