Been meaning to do something like this for ages. It's an FSJ vacuum routing writeup with color-coded diagram. It highlights all the subsystems (EGR, AIR, spark advance, etc.) greying out the rest so you can kind of see things one system at a time. Other folks I've showed it too seem to dig it, so thought I'd share in case someone on here who isn't on CFSJA or IFSJA will find it of value. Lemme know whatcha think
FSJ V8 Vacuum Routing (Troubled Child: Off-Road Adventures in a 1986 Jeep Grand Wagoneer)