Well, like you, at first I was going to blame the Garlocks. Then I noticed you don't have a machined LIM.
You don't need to machine it but you do ned to oblong the PCV hole to extend it to where the hole is in the IC core. Not a big deal at all. All you do is kind of make a channel from the hole in the LIM and stop it where the hole is in teh core. I guess you could stick a Sharpie through the hole in the core so you know where to stop.
Dremil is your friend here.