good hedder paint
Another vote for VHT. I cheaped out and got some rustoleum engine paint and while it covered up bare metal just like it said it would, it ran and pooled and generally gave me all the agitation I have come to expect from spray cans. I used naval jelly and VHT Flamethrower paint on the exhaust manifolds and they look like I went to a professional.
I have no before pics of the exhaust shield but trust me they look like a million bucks compared to the rusty crustmonsters I pulled out. First pic is the best "before" I have of the manifolds.
Before:
During:
After: