Bob,
I can answer for the port dividers, atleast my take on them. They worked well for me. I run a turbo system with multiport EFI. With them idle quality went way up and so did performance. It is more of a Multiport EFI thing, not so much for Carb.
You are also correct about variables with head work. But I have found for the average Joe, doing the same mods to a open chamber vs a "194" head, the open chamber wins.
Last I knew with Mike Kirby, he mainly reworks open chamber heads. Maybe someone should call him and get his 2 cents.
Tom -
With your turbo and fuel injection your idle quality went up. I can understand that, but, what amount of gain in performance did you experience?
I also agree that for the average Joe (myself and many others) the 194 head might be a challenge. Someone with many years of inline cylinder head experience might have a little more success. Sometimes cheaper is not better.
After speaking with Mike Kirby, he stands by what I said about the 194 head. He also stated availability and cost are the reasons he is doing mainly open-chambered heads.
Bob
