Take a look down lower in the stack of posts to where Tim Deeson and Jason are debating intercoolers. I am curious about tubing size for the IC runs, but you need to know what I am running to reply with a knowledgable answer. I thank those who reply, and would like to say it's because there is such an active forum and a fervent following for the cars that I have maintained my interest in Z cars. Thanks for being here. I wish there was a Muscle Pontiac Forum. Not the late model stuff.