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317s or 243s

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Old 12-12-2007, 07:59 PM
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Default 317s or 243s
Which heads flow better? and what size are the valves in the 317s.
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Old 12-12-2007, 09:13 PM
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They are identical in all way shapes and form other than the combustion chamber size
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Old 12-12-2007, 11:17 PM
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voting for 243's, but both are nice heads, both have the same valve sizes
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