Visual difference between 48 and 59 degree W2 heads?
Thanks. Thats the pic that I was looking for but couldn't find.
I'm not sure about the closed chamber thing. The reason I was asking about the angle is a set on FB that have what look to be open chambers and are 48 degree as seen below. But the open chambers are probably only about 65cc? I remember reading about 47cc and 55cc closed chambers. Anyway, they won't work for me but now it will be a little easier to weed through the opportunities for me.