I have a 07 mustang 5speed with the 4.0 v6 engine I recently changed the head gaskets on both banks and new valve seats and machined the surfaces flat also new front and rear chains and guides I used the otc tool to install the kit. After starting the car it has codes for oxygen sensor replaced that then next code said cylinder 2 is running lean and the car won't idle good I installed a new fuel pump and filter with no change in the running condition. I need the factory timing adjustment procedure does anyone have alldata that can send me a copy of it I would appreciate it a lot.