A500/A518 Cars, OD and L/U on a toggle or auto?
When I first did mine I ran simple toggle switches, then I made my own kit like the one above, I didn't need a vacuum switch because I used an output from my sniper injection to help control it. I then switched to the Compushift Mini. It works well in my application because I am running sniper injection and already had a TPS of course.
COMPUSHIFT Mini Converter Lock-Up Controller to suit Chrysler
Garth