How about making the middle 11 teeth an inch longer in height,since then it would come up to the bottom of your hood.Then you could slope down left and right to the 4 teeth on each side.One way or the other,It looks real cool!How about fabricating it first in cardboard,or foamboard,or balsawood,so it will be easier to work with.You will be able to figure out what to do with your diectionals with the easier working material.Good luck,your onto something.The new Chrysler corporation might be calling you,though.