12.5 to 1 What octane do you run!!!

I wonder if i could run av gas, Its like like a 100 octane right?
71gtdart what is the altitude/s that you race at.
moper, I'm a little bit un educated when it comes to racing fuel. CP C-12? I'm guessing that its a 112 octane????? What compression were you running.

100ll would be fine for cruising but for wide open id use a higher octane to be safe, 100LL is 100 octane and if you richen your carb you might get away with wide open passes.