I've got a 1918 Overland 85-4 . I have several manuals on the car but nothing with parts spec's such as plug, rotor, points, caps, max fuel pressure, etc. Where can that type of info be found? Lastly, any good sources out there for Overland parts? What I need currently is the casting that holds the speedometer cable to the wheel gear assy. The bell shaped casting that holds the cable to the gear hub has lost about half of the bell. It appears the part number of the entire assy is 6756 in the parts manual, page 84.