Hi , just to show you my 6.0l smooth idle after replacing the top cover gasget and breather to top cover rubber seals and clips. The engine always had a hunting when idle and was often told that it could not be improved but after my work i am now very happy with how stable the idle is. The car also has Lutz stage 2 cooling mod , two peed cooling electric fans and new ally rad.
Engine is at normal temp with fans on at half speed at start of videl and switch to full speed later in video.
Please let me know what you think ?