WE had been chasing a problem on the dyno where the Vtec wouldn't engage. Could not find anything wrong. Was starting to think that maybe I had the wrong head gasket or something.
So It's been parked for the last month or so and decided to pull the head off. Cometic gasket is correct, head is stamped PR3-3 but there is NO Vtec oil hole in the head next to the head dowl.

So are all PR3 heads Vtec???