Tried to fix a typo and my post was deleted:
I have no way to reach out to him, just shared what is publicly viewable.
He didn't share BIOS settings, just E-LEET X1 settings showing 61 on 1-core, 60x on 2-core, 58x on 3-to-8-core, and 46x on e-cores. That's why I suggested above that if your cooling is adequate, that is likely feasible. I run my e-cores at 46x, so I'm not surprised. I just can't run 58x all-core without some voltages that are a bit excessive. I can benchmark with 61x on one core (maybe 2, I can't remember), and 57x all-core, but it's HOT and it isn't stable for more than a run or two of something....so there definitely must be some special binning going on for these 14900k's.
Just for reference, my 24/7 settings on 13900k are what's above, but multipliers at:
60
60
60
60
58
57
56
55
V/F points 5100 and 5400 at -35 (or possibly -40 I can't remember...it's not stable lower than that).
all-e-cores at 46x
Ring at 46x. Leaving this on auto seems to be less stable for me. I get some kind of random crash that I can't explain and it never happens when I just lock this at 46x. If on auto, it oscillates between 46x and 50x. 12th gen couldn't really boost it past the e-cores and it seems very happy at 46x where my e-cores are.
I have a MO-RA3 420 radiator outside the case and a 420mm EK radiator inside the case with an Optimus CPU block and dual pumps. So not everybody can do those clocks 24/7 on a 13900k. Being the 14900k is just a really well-binned 13900k, I would think most can do this, but probably 8-cores at 56 is perfectly fine too and there may also be more tolerance for 61x on 1-2 cores. My CB-r23 scores compared to his are closer to the 41-41.6k range, depending on background tasks leaving open the monitoring software, etc..