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I just ordered a set of Crower stg II cams (Walter gets a big
) and I want to get my heads port matched. If I want to raise my compression by having the head milled how much can I go with these cams?
Also, does the Zetec follow the "rule of thumb" for milling heads? That is for every .015 taken off the surface you gain .3 in compression. So, would .045 bring it up to 10.5:1?

Also, does the Zetec follow the "rule of thumb" for milling heads? That is for every .015 taken off the surface you gain .3 in compression. So, would .045 bring it up to 10.5:1?