I agree, don't bother milling those heads. 10.3 ish is about what you can run on pump premium with a decent advance curve. That isn't bad.
A flat top piston with a quench chamber head will do that.
What's wrong with a nice set of iron 4v heads? There are quite a few cams that work well with them.
The 2v Aussie heads are over rated. If you look at them the intake ports go the wrong way. Anything over .500 lift is a waste with them. They simply stop working there.
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