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supporting mods for 243 heads and xer281

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Old 11-15-2011, 11:04 PM
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which is better 799 or 243
Old 11-16-2011, 09:01 AM
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you will not notice a difference

if they are ported or even just lightly gone over with sandpaper rolls (no cutting at all) there will be 0.00% difference



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