After I was certain everything was perfect (or as good as my abilities allow) I shot the area with black lacquer primer and wet sanded the entire area.
With the plastic motor in place you can see how close the engine will sit from the firewall and why I needed the extra room.
Here's a shot looking down from above. The passenger side valve cover will sit about ½” from the factory firewall.
Here she is cleaned up and back to “normal”. I will be fiber glassing a couple more things soon. Sometimes while documenting this project I wonder how detailed to get. I'll try not to get too boring with details and stick to the basics.