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how much shrink does the product have after it is removed from the mold?
Could you use it to make a mold out of something else easier to shape and less expensive then a head for test porting?
Zero shrinkage so you can easily take port measurements at any given point. Not sure about making a mold of something. To remove it from the port you have to slice it behind the valve guide with a razor making a nice clean cut and then PULL it out the manifold face.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
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