leakage at cam bearing? I guess it is controlled by the tight cam to bearing clearance. A mistake many make, that restricts oil with a stock block, where oil up to the rockers goes up around the 2 and 4 .450" head bolt, is using a .500" stud
Allow me to refresh your memory.
In another oiling thread on the board many months ago you claimed that restricting the oil to the cam bearings from the main bearings was not required on your motor because you carefully controlled the clearance with your cam bearings.
That post was mentioned in this thread by procharged.
What I would like you to explain is how you adjust or control this cam bearing clearance as you stated.