Mad Max

I have a question about what you said regarding the heads. You stated that the aluminum heads are better when running at high R.P.M.'s, and the cast are better for lower RPM's. You then explained that the cast would keep the heat in, and allow for better burning due to the retained heat in the cast heads. After that you suggested the Aluminum Style heads??? You lost me there... from the way you made it sound, I should buy the cast heads, not the aluminum heads. Correct!??