I just did a cam change, and took the nasty dam stuff off, "what was left of it"! Got tired of getting fiberglass in my arms every time I had to work on it. Still don't have the dam stuff completely out of my garage yet. Guess I`m going to have to take the hose to it or mop it out.
Fisrt things first/ still have to reset the valves.
I did have my headers coated w/ 2000 degree something or other, satin black, look pretty fair, for used headers to start with.