What is the official red line on a 5.4L (1998, if it makes a difference). I know i have the automatic and all but i always wonder how close i'm pushing it to redline if i do punch it to the floor, which isn't very often, but.... wondering. Thanks

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1998 Black F-150 5.4L Lariat with ORP
GTS Blackouts Front and Rear, GTS Wind visors on windows and bug deflector