HOWDY
Jay, I hope to heck it is normal for the Carb to be above the base line of the fenders!
If you glass it, the way I do it is truly cut down from the top of the scoop about 1" all the way around the scoop. I then split the scoop in half from front to back. I add what ever height I need then add about an inch +/- to the center.
Measurements are critical from side to side or your scoop will end up being crooked! (Been there-done that!)
I can't remember the height I raised Ed's-shame on me!
DV
DV