CR and pump gas question

mbaird said

My point is ...are people ignoring variables such as chamber shape , quench and surface finish etc and jumping to the conclusion that it is the alloy that allows them more compression than their old head/build .???

I have no opinion on the efficiencies of Eddy heads .

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Yes, they are. That's exactly what they are doing.

I may, just maybe pull the heads off my junk and make it 11.25:1 just for giggles.

The next engine will be a 386 CID W2 deal and it will be 12:1 on pump gas. On iron heads.

Unless I die first. Which is always possible.