Her are my 1/2” pump/pickup tube mods done so far to the high volume low pressure oil pump.
On my setup the heads will be oiled through #2 and 4 cam journal holes as done by factory.
The crossover tube I installed will be feeding Pass. side tappet gallery and feed #1 main/rod.
Supposedly slowing down oil to allow more to get down to #3/4 mains/rods.
Permatex makes a thread sealer specifically for hydraulic fittings.
Almost as strong as red loctite but not quite. It is fuel and oil resistant and requires not Teflon tape or anything. Tough to find it. I had to order a bottle.