Today since we have nice weather I hooke up more items. No plugs in and turned the engine over a couple of times, maybe 3 to 4 minutes total. I had the valve cover off. Seems like every thing is working except I expected to see more oil. I have a new mechanical oil gauge and I have no oil in the tube. Is there a way to prime the oil pump? Should I be worried or not?
With proper assembly lube, lubing the oil pump with engine break in oil prior to bolting onto the block, you shouldn't have an issue with getting oil pressure to your mechanical gauge. Priming the oil filter with oil is always recommended, but with the horizontal mount on a 22, I don't know if the anti-drain back valve is good enough to keep some oil in the filter. Milodon is a well-known manufacturer and their instructions on priming their oil pumps is to fill it with Vaseline jelly if you can't prime with motor oil. https://www.milodon.com/instructions/oil-pump-startup.pdf
Cranking an engine for 30 seconds is LONG time to me, but you should see oil pressure in less than 60 seconds at the gauge. The oil pump will be pumping oil almost immediately and pushing oil into the bearings and into the cam and rockers before you see the pressure on the gauge.
You should have the plugs removed to allow the engine to spin faster.
The temperature of the oil is critical for adequate flow. If I lived in a very cold climate and firing a rebuilt engine for the first time in a non-heated garage, I'd heat the oil in a bucket of hot water, then pour it into the crankcase, then immediately fire the engine.