100 Octane with 12:5:1 340??

Wow! back from vacation and there is a wealth of info here.
well, I have a 4 speed and no worries about stall. Comp cam XE294H,250/256 110 degrees. Yes it is a full blown race motor, but I am fortunate to have a station nearby that sells 110 and 100 right from the pump. I admit its a bit ridiculous for the street but Damn its fun to drive. I have other cars for cruising. I keep a little 110 at home for when Im running low. I happened to run it just a few brief times on 93 and it ran just fine ie... no Knocks etc. Just curious about others experiences