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xtrm914 xtrm914 is offline
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Join Date: Jun 2009
Location: Socorro, NM
Posts: 2
It sounds like the consensus is 10.5:1 compression is too high. In the land of enchantment the highest octane gasoline readily available is 91. With twin plugs how high of a compression ratio can I run with the mod S cams? If I can bring the 10.5:1 pistons down to 10.3:1 or 10:1 will that be enough? Or do I need to use the 9.5:1 pistons?

Also, should I have the magnesium case shuffle pinned?
Old 05-05-2011, 11:08 AM
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