There can be a lot more that can be done .Like after everything has been ground down .Check the bearings make sure that the whole in the bearing saddel is opened at least to the size of the hole in the bearing. Some times the hole in the saddel is only partialy revealed.The bearing is installed and a pick or the like scratches the outline of the bearing hole .then remove the bearing and drill into the saddel slightly then connect the old hole to the new making a full sized hole for
oil to get into the bearing.The ports in and out block and of the filter hanger can be opened up to match the gasket.All the pound in welch plugs in the
oil galleries should be threaded for pipe plugs .Check the cam thrust plate .The two bolts that secure it some times cut off the
oil flow to the distributor. All threaded holes need to be tapped all the way to the bottoms.It's a small thing but all newly machined surfases leave sharp edges that will cut the crap out of you .Watch them and run a file accross them to remove the edge so you don't get cut.I can remember carring a freshly milled head around the front of my car and hitting my arm on something and that head cut all four fingers on one hand .The detail of all the many points to get will make you tired but will give you great self satisfaction.If you want more give me a shout.