Does an open chamber head create more power than a closed chamber head, given the same compression ratio? How is flame travel affected between the two, doesn't the flame have to travel over more of a piston dome in an open chamber head? Does the flame not spread out as much in a closed chamber head?
I'm debating between a 119cc head and a 113cc head. Or maybe this is not a debate on closed chamber and open chamber, but rather bigger or smaller chamber.
Brian