ok i gave you rear end setup, my trans, my converter size, and I am going with roller rockers. Iron heads. What more do you need..... I told you I am changing the whole cam set up, cam, rockers, springs. I'm not sure what the different type of cams mean. Its a street car so I need as dependable as possible. I am not a engine guy by no means so one that needs adjusted a lot would be great.