sorry i call bs on this and so will everyone else... you can run 10:1 but with a ton of duration (lots of overlap) you dynamic will be low meaning its making less power unless you spin the cam to its operating rpm. the inverse is true as well if you have 10:1 and a very high dynamic (low overlap) it will make more power lower because you getting less bleed off and More effective firing.
but yes i understand on the previous post that its a system, everything has to be matched. our slants are very limited in performance stuff, but i plan on 7mm stems and bigger valves, correct springs etc...
worst thing that happens is i break something trying to push the envelope.