You will definitely not talk me into believing something I know from experience to be false. There is mountains of evidence that stock high compression engines clash with low octane fuel. Why do you think people put lower compression/cc heads on their engines to make them drivable? It's a rediculous stance to say that we all could throw a tune on our distributors and get the same performance out of low octane that we have been getting out of the racing fuel mixture. That's not believable.