Compression ratio alone really means nothing as far as gas octane, its a combination of so many variables to determine anything, but ninja 250s to ninja 250s is a fair comparison, ninja 250's to zx10r is apples to oranges.
As RacerX said before, just by playing with cam timing he got his engine to go from some crazy low compression to 300 psi.
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Because Unregistered sucks at riding.
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