International fleetstar 671 Detroit diesel towing

Name: International fleetstar 671 Detroit diesel towing
Description: I stumbled on this video. It sounds to me like idle speed might be a little more but the tach seems to say 400. Of course in those days you could turn the screw to whatever you wanted it to be. Code:

I stumbled on this video. It sounds to me like idle speed might be a little more but the tach seems to say 400. Of course in those days you could turn the screw to whatever you wanted it to be. Code:

Discuss this in the forum topic Idle Speeds in History.