Cylinder head changes???

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Scott Coxwell
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Joined: Thu Aug 14, 2008 4:56 pm
Location: Waynesboro, MS
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Cylinder head changes???

#1 Post by Scott Coxwell » Thu Aug 14, 2008 6:10 pm

Have any of you guys change from the 5" bore spacing 13* Alan Johnson head to the 5.3 bore space 13* Alan J. head? I don't doubt there is more power in the larger head, just wondering how much?
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