Looking to cam up

I have 185 cylinder pressure 10.5 mahle pistons block zero decked 65 cc heads and no way can I run anything under 94 octane , still pings once in a while with the iron heads , changing to alu heads , hope to get rid of pinging .
If you are running 87 octane please tell me how , cause there is no way in hell I can , we have played with timing , carbs everything and no way it can run 87 octane .
What times are you running in the 1/4 mile ? If you tell me under 13.00 I'll be at your door next week for complete overhaul .