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Originally Posted by speedshopmike
i believe the aluminum head "1 point rule" is that you can go a point higher in compression with aluminum vs iron heads with otherwise the same combination - ie, more detonation resistant due to the surface heat sinking faster then iron heads.
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You beat me to it. So, If you can run another point, why not?
Jim, mill the heads and put them back on. We'll give you two weeks to come back with a full report.
