best way to mount fiberglass hood scoop to steel hood?

take the hood down to bare metal with 40 grit scratches the drill a bunch of pop rivets (like one per in) then use panel bond (a 2part epoxy for gluing cars together) and mate the two together. Remember Glass and steel vibrate at different frequencys. i like to then duraglass the first coat of smoother filler then use decent mud.