Weeds,
You can see the block hugger type headers on some of the engine pics in my picture trail album. The ones I am using are ceramic coated which evidently helps reduce the temp in the engine compartment but by how much I am skeptical. I am using these basically because they were donated to me by a friend and the son has insisted they be used. I had planned to run some ram horn exhaust manifolds but will use those on my next project.