Mine ticks over at 750 - 800 rpm.
But around 1,100rpm when cold and warming up.
It's a 3.9 unmodified Hotwire.
Richard; 750-800 rpm is the correct idle 1100-1200 is way too high, mine is at 900 rpm because I have the Tornado Chip installed.
Bruce, thanks for confirming the idle revs, it sounds right there whereas when the engine is cold it's racing a bit to me at the higher revs.
I hadn't appreciated that the Tornado required a higher tick over either, every day is a school day.