Well i'm talking from my own experience I can do 4.4GHz on Air @ 1.53 did not stress test and i won't be doing so. so, a 4.6GHz @ 1.4v ( +.02-.04 ) is feasible as far as i can tell
nothing is certain yet sadly

I'm getting a CHV in a week or so + a 1100t to play with until BD arrives
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