Bill and Al's not so excellent adventure?
That was a nightmare. Put an ATI in it and never another problem! I won't call them either. We have an acronym for PTC around here.
Not sure I'd spend 500-700 on converter for a car like this. It's got a stockish cam in it and 2.76's. I've had good luck with shelf hughes 2500 converters, 20mpg in a 360 demon and 2.94 gears.