What are the best fitting long tube headers for my small block '67 RS/SS. I've looked at some older threads and sounds like there were some dynatech headers that fit well, but they have been discontinued. I have an IROC power steering box and a Tremec TKO 600 trans. My current long tube hooker headers fit, but are up tight to the steering box. They are also aluminized steel (textured surface) and I'd like to change to smooth ceramic coated. My engine is mildly modified, Isky 280 mega cam, torquer manifold, original L48 heads, slightly ported, so I don't need overly large tubes.