Would a hood scoop help my problem?

Spent all day yesterday cleaning out my shed to get at this hood. When to Wal-Mart this morning and bought the largest round cookie sheet. Went to the craft area and got 4, one inch foam blocks 16"X16". A role 2" X 36" foam and some weather strip adheseve.
As far as flame retardant? figure i will find some kind of flame retardant spray to us on it when i'm done.
I'm beginning to think my cookie sheet is going to be too small for my carb base plate...........