Possible oiling concerns

Hey guys. I had sent a video of my slant six running with no valve cover to a cars channel. One of the guys in that channel is a mechanic from New Zealand and pointed out that there was no oil spraying anywhere, which I didn’t think anything of. But it’s got me thinking… the slant six oils the cam through the holes the push rods come up through, yes? So I don’t see any oil running down the head to those holes, so is it not getting oil, or is this normal? I haven’t heard any concerning noises out of it, but if it’s having trouble getting oil I don’t want to keep running it. Please share your experience with me on this matter