[camaromb]

On the blue car you can see the transition from firewall black to white over spray quite clearly on the passenger side firewall and on the firewall behind the distributor base (firewall black mostly below on tunnel and more white above on the flat firewall area) and below the wiper motor at the seam is mostly firewall black and more white overspray going upwards. The Fisher body grey I have seen is quite grey, kick panel areas, etc. The firewall black is most often absent in the areas behind the wiper motor, an area that typically rusts. I have an original '69 Camaro with a very crisp mask line for the firewall black, it goes beneath the wiper area, very little paint there.