I too have suffered the ills of the 6al but mine have been limited to the coil. I would not trust any of them. I have gone through 2 MSD 8207 Baster coils in 2 years and the third isn't looking so good. First is the intermittent firing then it will shut off. Will start up again after a bit. They don't have a good reputation. I came across the attached document showing MSD recommended coils. I am going to research and see which of these are good. For now I am just going to go with one that is compatible from Summit. Going to look at the high Vibration coil a few people talked about but it will be fender mounted like the current coil.
https://manualzz.com/doc/9233513/coil-compatibility