No oil coming up through my push rods.

The stock rockers are bad about the pushrod cups wearing out. So much so that with too much more than stock spring pressure, the pushrods can even punch through the rocker arm cup. Might be worthwhile to remove the shafts and rockers and inspect everything really closely.

Oh, and if you do disassemble it, do NOT use the book spec to tighten the rocker shaft bolts. It is WAY wrong. They are only 5/16 bolts and need no more than 15 LB FT.