You have obviously never really worked in a heavy manufacturing environment have you…
Judging that piece because everything is not centered in that machined flat is rediculous.
And, if you would like, I can go and take a picture of my 4G63 from my Evo and show you that damn near every machied feature in the head is not dead centered in each of the cast bosses. Shit, for that matter, go take a look at virtually ANY motor out of ANY car and you will see that.