The pedestal's need to stay where they are so, I will need to section some out of the outer side of each pedestal. So far on my 69 Bird the ends of the wing are about 1/2 " from contact with the quarters. I can make this tighter for you if you like. The factory style foam rubber for the wing tips will fit just right on my wings, as the ends are an exact copy of the factory spoiler with the injection molding holes too!
These parts are very rigid, I can't push down hard enough to make contact with the quarter. I can stand on the center my hood with one leg and bounce, it hardly moves at all, maybe 1/8'- 1/4', I am 165lbs. I think I could stand on the wing too, but have not tried yet.