Looks like something missing from the firewall of my 67 4 door H/T where the accelerator pedal linkage passes through. Maybe a rubber boot? I've got duct tape over the hole to stop engine fumes entering the cabin, but would quite like something more effective. Any advice would be gratefully received.
Have a look in the Performance Years or Ames catalogues but I also think you could easily buy it from any Chevrolet parts supplier like Classic Industries