My OEM wire was reading over 40,000 ohms and could not generate enough spark to start. There was a Bakelite fitting on the end connecting to the coil. When I cracked it open, I found a small 1/8" diameter x 3/4" long cyclindrical stick ( resister), which appeared to be driven, or held firm in place within the Bakelite, by a small 1/8" diameter x 1/4" spring. I am wondering if the technical concept in 1942 was that this wire and resister were variable, and what was the purpose of the 40K ohm piece? I have a zero resistance wire I can install, but I don't want to fry my system? Any advice...or how to get original technical information from GM or AC Delco? Thanks, from "wanting to ride".