[resto4u]

I don't think the problem is the mold. It is the materials and technic that was used back then is not the same that made the pictured hood. The old hoods were made by chop guns and hand rolled, and might have used cut fiberglass strips. The old way took lots of hand manual labor, every hood was different. The hood pictured looks like it is a molded hood made with the technology used to make the new Nickey Chicago hoods.