drilling a hole in the back of your scoop?

how many inches is the opening of your scoop?
I have fuel inj. and a filter under a 6 pack scoop, and not worried about it at all. more worried about the scoop raising up at speed. do have 8 hood pins in it tho. people that tell you scoops not working unless they are tall ones are full of it. we had a 66-67 suoer stock scoop on the hemi back in the early days, and it raised the whole fiberglass hood up to where I could see the carbs. at a 128 mph. we did add some hood pins !