What is the lever on the front(facing rad.) of a 84 Quantum TD pump? Nopt the advance that is on the other side of the pump too. On the side of the pump, not the throttle.
It could be an internal max throttle limiter like the type found on AAZ pumps. I didn't think mk1 pumps had this but I haven't handled any mk1 pumps before.
pull it with the car running and see what happens
It could be a shut-off
Yes the Quantum was a Automatic. What do think it did?