Sadly to say, I have recently done a 99 LS on a 91 LS head swap. The car used to idle kinda rough and now it is even more rough. So i tried to install a MSD SCI that i bought with coils for 100 bucks. It turned out to not work and i believe mess up my bearings. He is sending me the reciept so i can send it to MSD and get it fix for free.

However my distributor been click <sounds like bearing hitting each other> for 3 days and then now no mor eclicking but i hear a low faint sound of a high pitch whining. How long do i have until the dis goes out on me or will it? Can i do anything to fix it? Or should i just buy a used one?