Mark where it will go on the hood, cut the opening you need for clearance and attach the scoop. Bolt the scoop to the hood, make sure you use flat washers on the fiberglass scoop. Don't try to glass or mold it to the hood. Fiberglass and steel expand and contract at far different rates and it will crack.

Make a template of the scoop mounting flange and position it on the hood. Move it around the hood for the best clearance and eye appeal. Use this template to mark the location for the mounting holes on the hood and the scoop mounting flange.