AJS & Matchless Owners Club

To jump on this thread, I was checking mine over as still not on the road yet and found this hole blocked had to also remove the head and valve to unblock the hole properly as seems carboned up but I noticed the hole goes in at the top where the well is and straight out the bottom with a hole out to lubricate the valve. Is this correct or should the bottom of the hole (back into the rocker cover) be blanked off so it can only come out the valve guide…. Hope this makes sense