I read the threads, But if I don't have the facts I keep my opinion/thoughts out of a post. In my garage I chase my own tail around enough for everyone here. As for your new MSD box, Mine is a 6A and has no led light, with a MSD distributor.
The only input I will share with you is when you get it right, Mother BEAR they'll shock the FU^% out of you!
I don't go near they dam thing when the engine is running