It's a small block Ford, and won't be driven hard. It doesn't need anything special.
Use a viscosity that will maintain
oil pressure when hot and cold. If the engine's tight, use 5W-30. If things are a bit loose, use 10W-40. Don't use a single weight
oil, or 20W-50.
There's no need to spend the big bux on a true
synthetic oil. A true waste of money.
Buy whatever brand you've been using over the years, and change it once or twice a year, depending on hours/miles of use.
Solid vs. hydraulic lifter won't matter; but flat tappet vs. roller will. If you have flat tappets, add 1-2 bottles of Comp Cams break in lube. I have roller lifters, but I use that stuff anyway. It helps prevent glassification of the cylinder walls.