Guru
Keep priming and roll the engine over to different positions every 5 minutes. It takes a while. If the drivers side oils and the passenger side doesn't, look at the distributor height. It forms parts of the passenger side galley for oil to go thru.
If all else fails try pressure priming form a tank. You can also start the engine with the valve covers off and verify every rocker oils. Messy, but it works.
Don't forget to use an additive that has Zinc concentrate to protect the lifter/ cam surfaces during break in if it is a flat tappet cam. Todays oil doesn't have any.