FHO stage V heads look great! I hope they work great, getting ready to turn the key in ~1 month. Just FYI, the exhaust ports are wide and raised relative to stock. They do not fit stock type headers without work. Also, the accessory drive mounts do not match OEM. Finally, depending on the intake you are using port match is a bear to achieve. In my case, I was trying to line up an Indy single plane and required more than I hoped. Good luck!