Cylinder head changes???
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- Scott Coxwell
- Posts: 31
- Joined: Thu Aug 14, 2008 4:56 pm
- Location: Waynesboro, MS
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Cylinder head changes???
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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