Jeez, I seem to be a bit of a speed bump of late. lol I thought Flash would have come back with an answer at least. No one knows this?? I am trying to determine if going to 16v is worth the extra cost on a race engine so that's why I'm asking. I have 247cfms currently out of an expensive 8v head, maybe I should justs stick with that but I'm told once past 3L the 8v just doesn't flow enough and really need 16v so any help is appreciated.