I'm having a hard time seeing how this would make any difference. How would the amount of airflow change?
"another option you could add is if you want to keep factory seal around IC to scoop you can raise hood by 1/2 inch. All you need is 4 washers or so per bolt on hinge, 4 bolts that are 3/8 inch longer than stock, and you are done"
Raise the whole hood so there is a big gap around the edges?