I to was in LO23M8B mind set and most of us were, at one time or another.
This trend of thought has been around sence the first mopar alu head was poured into a mold.
I believed that the compression need to be raise because of the much better heat transfer of he alu.
I believed that there was a power loose if you didn't.
I believed that you could get away with more timing and compression with alu head or that it required it.
When i watch the Engine Master Video comparing the alu to the iron, It shattered all of my "I Believe"
So instead of righting a two page aka what i leaned i gave a link the LO23M8B, so he could learn as i had and as any on else on here could/can.
That's what this community is all about teach and learning to make or mopars better and stronger.
First let me say I didn't get to the article yet. But I have done testing in the past and the problem I had was I couldn't find the exact same ports on the stock vs as poured alum. heads. The alum.heads had a much improved designed port and chamber. So the dyno numbers would be of no use. But if someone does a flow test on both heads and checks the velocity at the same points you could have a better comparison if the chambers are the same. I will read the article as I still learn something new everyday. Thank you all.
If anyone mist the link its on post #70