Supercharger question
#6
For that you can just get one that is made for the 4.6. On that note I believe they won't fit up at all.
#10
don`t you just need 4.6 lower intake for blower should bolt right up if the base plate is the same if not have machince shop make a spacer/adpater plate haven`t got to work on a whole lot of 4.6/5.4 supercharged cars