THe only other way of getting more compression (but only a very minor increase) is to use thin head gaskets, or mill the heads (more compression increase). Milling the heads bring with it the need to mill the intake manifold as well, and you may need to check valve train geometry. All of that really doesn't address the lack of flow from the LA heads. The EQ heads get you more compression as well as having vastly improved flow. The improved flow generally results in some power increase across the power band, unless the flow increase is due only to making the intake/exhaust runners larger. In the EQ heads, which are actually based on the Magnum heads, they have made much of their improvements without resorting to huge runners, so they work well over a wide range of RPMs.
I have also heard that the heads are actually cast in Australia. I don't know if there are any Mopar clubs in Australia, but if there are, they might be a good place to start asking about the EQ heads.
Kostas
