The Harwood instructions indicate that the 3/4-inch flange at the perimeter of the hood is for protection during shipping and that it needs to be cut back to 1/4 inch. We judiciously trimmed the fiberglass a bit at a time while continually trial-fitting the hood--better to cut four times than ruin the hood with one wrong slice. Ultimately, we trimmed the entire edge down to no more than an 1/8-inch lip except at the very front, where it’s critical that the body edges line up for the car to look right. We made those cuts once the installation was nearly complete. The hood can be trimmed with a saber saw, but we found an air- powered cutoff wheel to be the perfect tool for the job. Don’t be as stupid as us: Wear a respirator, gloves, and eye protection.