Ok so I *could* use the old manifold. Thanks for that.. I have a spare now.

But the question is:

Where can I get the flange adapter to weld up my own? Local muffler shop does not exist (well, 15 years ago it it did).

Is there a part (just the flange and donut) that I can order? Anyone know in Central PA where I could get one? I have an exhaust I can use as a pattern if there is a place that can bend them from an original.