I pulled the necessary plug and began the first drilling for the new #3 cam bearing oil passageway. https://bobhooversblog.blogspot.com/2007/05/av-pulling-plug-ii.html https://bobhooversblog.blogspot.com/2007/06/hvx-mods-again.html https://bobhooversblog.blogspot.com/2007/05/hvx-mods.html