I understand that
oil gets to the valve springs, rocker arms, etc. via the pushrods. How does this
oil get drained back into the valley or crankcase? That
oil has got to go somewhere.
It appears that there are drain holes, one at each end, near the valve springs, but then I am told there is no oil path through the cylinder heads. I'm chasing a leak and even with dye I haven't found the source yet. It isn't the valve covers or the china walls, there is no oil leaking above the exhaust ports.
Dart block, AFR heads.