Chrysler part in my Ford!?

Spent most of the day yesterday reading through the Fordsix forums doing a little research on my 300 Inline 6 for my F250. Not as good a site as this one (no suprise there) but a lot of interesting tech stuff to questions I didn't even know I had until I got there. Here's the link to the hot set-up in Ford sixes: notice the spark box?

http://www.performancedistributors.com/fordduraspark.htm