Any AFR vs. OEM pics?
AFR pics:
https://ls1tech.com/forums/generation-iii-internal-engine/203115-g-force-205cc-afr-head-flow-s-inside.html
LS6 head pics (although I'm sure someone has posted better pics):
https://ls1tech.com/forums/generation-iii-internal-engine/173999-pics-my-fms-stage-3-ported-ls6-5-7-heads.html
Sure looks like the AFR chamber size would be smaller with that extra little bump in the quench pad by the bottom



, KingKrabBox posted some very detailed pics not to long ago, the ports look great.