was just wondering what kind of gains I will see from this. also wondering from people that have installed these if there is anything i need to know. I got headers a few months back and had to deal with the 02snsr placement on the aftermarket. Was just wondering if there are any "hiccups" in the process of putting rockers and rods in. Also do I need to have a cam to run these? how will it run after installation with stock cam?