Oiling issue...need help!

so I got my 440 on the stand and priming it last night. I've got oil coming out below the #2 and #4 cylinder on the cam but nothing coming out at heads. It's not even making it to the bulkhead on the back where OP sender is. What gives? I understand to rotate so cam can line up but I really figured I'd at least get oil all the way to the backside.