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Under the radar
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
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With twin plugs you can go 10.5 to 1 CR or higher with race gas. As far as cams go, it depends on how high you expect to rev the motor, and will the bottom end handle that RPM. Doubt you will need any larger valves than What SCs came with, unless you are going really wild.
There are a ton of threads on hot rodding SC motors. Spend some time searching.
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Gordon
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'71 911 Coupe 3,0L outlawed
#56 PCA Redwood Region, GGR, NASA, Speed SF
Trackrash's Garage :: My Garage
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