ICM issues are what led to us doing the LS1 swap. I never figured out why but the car was eating them every two sessions. The ACDelco ones would last longer. They all exhibit the same symptoms though, I would loose ignition for a few seconds once, then about 10-30 minutes of track time later it would go out completely. It was a contributing factor to the grass fire at TWS (along with leaking oil and my stupidity of putting in the grass). The last time it happened the car back fired horribly, ringing ears and all. Did it again when I tried to fire it at the shop.

I wanted to try this kit, but adjustable timing is against the rules.
https://www.jegs.com/i/MSD-Ignition/121/83811K/10002/-1

I just now found the piece parts I *think* you need to eliminate the ICM by itself. Not sure on the rules status of it but in the spirit of the CMC rules I'm going with illegal. If I had found them earlier maybe I would have tried them out.

Pig-tail
https://www.jegs.com/i/MSD-Ignition/121/8876/10002/-1

Digital ignition
https://www.jegs.com/i/MSD-Ignition/121/6425/10002/-1

- Josh