Kostecki Engine Center did some work like that, they've long since deleted the pics from the server though. they stat with Aussie CC chambers and open them up considerably. they're almost an OC chamber when they're done.
something i've not seen mentioned here or anywhere else,
Singh Grooves
http://www.rexresearch.com/singh/singh.htm
there's a guy that did an experiment with an sbc online with limited success if any, but i don't think he incorporated the grooves, only a single channel. i've been wondering if Singh grooves could be added to CC chambers. i'm surprised they haven't turned up at Engine Masters yet. those ProComp heads with too much material in the chambers(sunken seats) might be a good start?
"Enlightened statesmen will not always be at the helm" ~ James Madison
