Well I'm about to cut them bits up you asked for gtrpsi as I'm about to start porting the head soon, I finished my porting on the bit that's attached to the head a while ago, took about 10 hours to complete, a question for people who are experienced in head porting what kind of finish do you use? I'm using 80 grit on a little die grinder flapper disc, here's a few pics of how it looks,
Port matching to my hypertune runners
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The left is standard the right is my job