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#7 |
Junior Member
Join Date: Apr 2010
Posts: 2
Likes: 1
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My experience with late model (7K3, 4X) heads is that from the factory the port size is smaller than the maximum allowed, and the chamber is larger than the minimum allowed. My (non professional) experience is that the heads can be milled to get to minimum cc's, and that bowl work can really improve flow.
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