Yes, so far I am. I'm on the hunt for 340 manifolds that don't interfere with the steering box. Or if I decide to buy a TIG and weld my own headers. :)
If you have manual steering (don't remember if you have power or manual), I have a set of 318 Magnum manifolds that I won't be using. I don't think they fit with PS. If you're interested I can send you some pics.