Replacing Manifold/Stove-Pipe Gaskets

This is the first I've heard of this Mark. Could you tell me why you think resurfacing them would lead them to failing? From my experiences and everything I've heard, not resurfacing almost guarantees you a vacuum leak, especially if they aren't pulled off the car together.

To the thread starter, I have the exact gaskets Dan pointed you to as well as the open choke pocket. I had the manifolds resurfaced and I used black rtv gasket goop on it and even though people have told me that was a bad idea, it's worked perfect for about 5 years now. I went to Kragen and bought a sheet of gasket composite material with the metal mesh on the inside. I cut out a choke pocket gasket and used a little grinder to grind the edges smooth. I put a little black rtv on each side, put the cup back in and it hasn't leaked in 5 years either.
Good question....I wish I knew exactly. I've just gone by feedback from my customers and my own experience with those manifolds. Those that surfaced them had problems and those that didn't, didn't. If I was to guess, I would say that somehow the clamping stresses get changed when the manifold get surfaced and the new stesses don't get relieved properly. Maybe if you surfaced each manifold separately and the same amount, it might work ok. Otherwise, if you do them together, you can't follow the installation procedure and tightening sequence in the same way.