I had my 67 restored a couple years ago. During the process, it was put on a rotisserie and all of the undercoating was stripped. When I replaced the carpet on the inside, I left the original noise dampener in place and installed the new carpet over it. I also replaced the radial tires with the original 4-ply bias tires. The problem is that now I get a lot of road noise inside the car; not nearly as good as when the undercoating was installed and also had radial tires. I've read the thread on undercoating and it was applied originally by the dealership. In lieu of having it reapplied, is there a good solution out there to eliminate the noise while keeping it as original as possible? Anyone know if this was as evident on those that didn't have undercoating applied?