318 head porting for the average joe

4spdcuda66 said

Once the rough work is done with the carbides, where do I go from there? Do I go with blue stones and then sandpaper rolls? These are the bits I used for the rough work. Will you experienced guys post some pics of the bits you use please? Thanks.

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Running gas on a street driven engine, polishing the intake port can be counter-productive.

A slightly rough surface creates a boundery layer of turbulance & prevents gas from adhering/pooling to the port surfaces.

Polishing the exhaust ports does have benefits.