I meant in the case of my 440/493 that was at around 10.85 to 10.9 to 1 with the .039 gaskets with .051 quench....that went to .085 quench when I went to thick .075 Cometic gaskets. I was already on the far edge of proper quench with the .051 number so going bigger helped with zero drawbacks.
It worked just fine. I used to drive in 100 to 110 degree summer heat with zero detonation.