[Red Mustang Gt 46]

Leave the fuel rails but remove air pipe at the Throttle body and bend it forward out of the way. Remove the PCV valve from the valve cover and move it out of the way. This should give you plenty of room for removal.

For the rear passenger's side plug, you may have to drop the socket in the valley first and then connect the u-joint to it after you snug the socket on the plug, thats how I did mine. Make sure your socket has the rubber insulator inside of it so the plug will come out with no problems.

Don't forget the dielectric grease and anti-seize grease.

30 minute job if you take your time....