the "other" cast iron headers other than Fenton? I have seen another style from some other site but don't remember who else makes them. I think they will fit my 292 in this rig better than Fentons. I want to put them on with my 3 inch Magnaflow muffler. Should do well. Since my rig is passed smog requirements, should I remove that old AC Delco cat? I had the head ported and polished. I know there is a honey combed type that breathes better but is it worth it? They are not cheap! Would it run better without it? What about noise? Or should I buy one and have it installed? Thanks. Henry