My 422 smallblock build

I don't cover either of those gallery's. Unless you have the plate with the relief for oil, the leak at the cam plate should be zero or close to it.
Yeah I know a lot of guys don’t put those plugs in but every smallblock I’ve ever opened had them there so I’m going to put them in. I am planning to put a tiny pisshole in the plug and a bigger hole, maybe .250”, in the cam plate to lube the timing set.