Believe it or not that's starting to get helpful minus the sarcasm..
When I pull my heads apart I'd like to maybe put some color coded marks or little round colored stickers in the intake Port areas.... I'm assuming the inside or far outside port would be different from the two inside ports, but mirror images of each other? Maybe on the two different ports putting a color coded mark at the beginning middle and end of the top bottom and sides and having each little area color coded or marked and then maybe we can be told where we can get away with the most grinding or even better yet we're absolutely not to grind? Kind of porting for dummies if you will...