Cams are too in depth for me. My brain can't handle what they do or how they work. More than one thing happening at a time is too much. Too pick a cam I called WCCH and told what i wanted and paid em. A cam showed up. A guy I know says a cam is like a penis you always want more when you go to use it. My next cam will be an ls9 cam which is the same as the lingenfelter gt-7 for 159.00