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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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It' s my understanding that all the factory S cams up to '73 are the same.
With single plugs and that CR I would not go over 28 degrees maximum advance. I assume you are eliminating the vacuum advance from the distributor. Even so, you will be on the raged edge using pump gas with single plugs.
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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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