With the hood on the car and light weight hood springs on the hinges, remove the middle fender side rubber bumpers,not the front adjustable bumper, then heat the warped hood bottom area with a propane torch quickly and carefully, till it's hot to touch, then set the hood down with weights on a piece of plywood in the warped area till even and cool it with compressed air on the underside. It may take a few tries, depending on how high above the fender it is. It takes some talent, so if you're afraid, get a good fiberglass guy to help you. Another cheat would be to put shims under the middle areas of the fender to make up some difference of the warped hood. Goodluck!