Well, to put it more broadly, all the Ford "Modular" motors are picky about timing, although the 3V engine seems to be particularly fussy. The detonation concerns are just as valid on the 4.6L as they are on the 5.4L's. The same standard guidelines still apply.

Hope this helps.

thanks for the help. i will be ordering my nitrous tune this week and i will just do the 75 shot so i can adj +2/-2 for the 50/100 shot.
:thumbs up yellow: