I just acquired a RB Indy wedge block aluminum and just bushed the lifter bores and installed bronze bushings.
What I am seeing with this new block is that the oil galleys are facing inward in this block which will cause oil to flow full pressure all the time, resulting in too much oil to the rockers.
The crower lifters I have are designed for stock block application where the oil galley facing outward.
I also drilled oil drain backs in the valley larger for better drainage.

Which ones are you running? Trying to see if we can make close to 1000HP naturally aspirated.