I found it online but can't remember where, it's in a forum somewhere. It was a forum he and one of his co-workers set-up, but then Jim's daughter had it stopped. It's still around but takes a little while to find it.
Google Big Jim's Black Book and start scrolling!
It is a great read for those still into brushed, especially if you're into 4 cell and / or oval racing.
It's based on first gen motors like the Trinity Cobalt and P2K2's etc, but has some very good advice