Valve train oiling opinions

12many said
I run the Trick Flow heads on an early Magnum block that has the drilling’s for rocker shaft oiling. Using the Trick Flow “bolt” kit as well. I can verify via actual inspection by pre-lubing as well as from actual running with the covers off that the oil delivery to all the rockers is plentiful.

If you do go with shaft oiling I would first verify that oil flows from those block passages, one can assume that the cam bearings were positioned correctly when installed, but I’d check to be sure

Good point on the cam bearings. Im having the block bored .030 over and the cam bearings replaced. Hopefully the bearings the machine shop installs will have the holes drilled for the oil passage. If they do, I might just go with LA style rocker shafts. They're cheaper than the harlen sharp push rod oiled rockers.