I've used adperformance.com for parts and my stroker crank and they were great to deal with, shipped quickly, and were able to answer my questions clearly and quickly without making my feel like the dummy I am sometimes.
They have an FE stroker kit here
http://www.adperformance.com/index.p...x&cPath=71_234 . Take a look. This is their Scat crank kit which is rated, I believe, to 800 horsepower or so.
Bob