ya ya ya ya port polish whatever.. just a waste really. a good valve job will get you better performance than any p&p. besides if you take your head to a shop and get the train ran on it there gonna more than likely take the casting lines out and so on. get the best shop to do the best valve job possible. get your guides cut and deshroud the valves a bit.

take your stock head to a shop and dump some cash in it. let the shop tell you what youll need. not a bunch of haters on a forum.