So, about ten years ago built a friend a 36 chev pickup, 350-350 combo, I wired it, been an absolutely great truck all these years. However, he has been through at least five ignition modules in ten years, all have failed when the truck has been parked in his garage, (or the last time he parked it). In comparison, my 36 ford pickup, 327-350 combo, has never fried a module in 17 years on the road. Any of you got any ideas why this happens? Both have stock hei distributors, both trucks wired the same, both put out 14.5 volts steady, no fluctuations, good steady power. Really just trying to understand why this happens, thought some of you may know. LeRoy.