Actually a friend of mine does this for me. He used to work for Race Engine Design and another race shop. He does them at home now. He has his own equipment and everything to do it all. He does the port, polish, valve job, and he also did my intake manifold (port matched and polished the runners. I can have it done for anyone for about 450.00. If anyone wants work done email me or post here. He is really really good at his work.