Shuebeck lifters?
When I bought my Indy headed R3 block it came with a .650 lift solid lifter cam from Hugh’s and a brand new set of Shubeck lifters. When I went to assemble everything I did a lot of reading on those lifters and heard how desirable they were. I was kinda gun shy hearing that if one shattered it could really tear things up inside the engine. So
I sold them and ordered a set of EDM lifters. They held up great for five years so I’m happy with my decision.