They are thinking "what the heck?" too. An inspection is normal. How about getting the store to warranty it? This is strange enough that it is hard to even picture. I could see the extra force of a super tight supercharger belt messing up something with a flaw. But with an almost stock setup, something was loose or had a defect. Or it could have been Voldemort.
@Noobz347@stykthyn I'm not using the factory alt. bracket. It's a summit aftermarket that I used in my blower setup. Check out the Anyone running a HO alternator thread I started please.