Two questions I was thinking about

1. Has anyone here tried to wire up a small 4 or 6 inch 'sucking' fan that is placed on the underside of the hood, and is directly underneath a hood scoop so the hot air may be allowed to flow out of the engine bay? Theoritically could that work?

2. Thinking about CAI, and what is the best way to make a shield. I know this helps out, but is it critical that a shield is made? Fiberglass ok or is plastic stong enough not to melt? Where should the cone be covered at. Top, bottom, etc...