tclederman, I see from your post that you are using the Totally Stainless bolts for your manifold setup. I have the same SS bolt kit for my engine, but I remember a post on one of these boards, which advised against using them for the manifold application due to some interaction of the SS with the cast iron head/heat.
Here is the post I saw: http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=002671#000001