Michael,
I am unfamiliar with the thread about twin plug mod and plugging the holes until you are ready. When the time comes, you will need to pull the heads and raise compression or twin plugs will not give much benefit? I don't understand the logic. If you have high compression you need twin plugs now. If you are running 9.8:1 or less why would you go to all of the expense to twin plug. And I can tell you for a fact that it ain't cheap. Just wondwering.
