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Registered
Join Date: Apr 2003
Location: Maitland, Florida
Posts: 892
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I'd bet you'd get detonation in Houston with a 10.3:1 compression if you didn't twin plug. I'm also guessing that the small ports and intake runners on your existing CIS and heads will limit your top end, even if you use a hotter cam.
Regards,
Jerry Kroeger
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