Tim, solid wire is supposed to be for non highway use only such as farm tractors or race cars. So is ZDDP However there is a gray area as to using what was original equipment in an antique vehicle. And I am not sure who is supposed to enforce this. Probably the FCC. Of course they are supposed to police CB also. They don't have the money to shut down 1000 watt base stations, much less catch mobiles. I guess I am inconsiderate. If the guy parked beside me at a red light has a little static in his radio, I don't really care. Furthermore, the new radios have much better RF filtration and he probably isn't getting static like we did with the old tube type radios. I buy Packard 440 on eBay, but I would strongly suspect that wire replacement sets would have a disclaimer somewhere in the fine print that they are meant for off road or competition only. Of course some disclaimers are pretty generally disregarded.
Bryan, I doubt that a coil would do what you are describing. Have you checked your vacuum advance? Also have you checked your centrifugal advance. You can watch the vacuum advance working by seeing it turn the distributor when you rev it up a little. You can check the centrifugal advance by disconnecting the vacuum advance and then putting a timing light on it. The centrifugal advance should advance it as it gains speed. My personal opinion is that these things were built for solid wire, but they will run on carbon wire. I would not add a resistor plug to it. Also, I mess with GMC, not Chev, but I think the ignition is similar. I have taken new Champions out of a GMC that had erratic misses and replaced them with AC and that fixed it. NOS AC45 sell on eBay for about the same price as other plugs sell over the counter.
