Can I ask why it's different than the factory rating? I thought the aluminum heads were a step up.
Don't get me wrong, it's not that I don't believe this. I just want to know why I didn't get the power I wanted.
I wish I could contact this guy. He and his father were very experienced in engine building, but mostly Chebby engines. This guy was a good friend, and almost begged me to let his dad do the build.
