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If your timing is reasonable, my experience is you have to be pretty abusive to get a Spica car to ping or knock; they're pretty resistant to it. Carbed cars will ping more easily.
I use the highest octane I can get, which where I live in Calif. is 91. I think 87 is asking for trouble, unless you're at high altitude, which 1000 Oaks is not. Make sure to keep your ear tuned for pinging or knocking while trying 87.
Andrew
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