Hellcaminokid....if you're running 94 and you're actually at 10.5, then there are other problems....must be too much timing. What's your total timing? You should have no pinging at all with that combo. As far as the octane thing, trying to blend all that will get old real fast. Toluene is now about 12 or 13 bucks a gallon, as is Xylene. Like 383chev says, just mix some racing fuel in with it. Better yet, dont build a street engine that needs racing fuel.