It says a "...rate 13 times greater than that of their naturally asiprated counterparts..." so I'm assuming it's more prominant in S/C cars but I have no doubt in my mind that it's a problem in N/A 3800's as well.

I wonder maybe the blower is what's causing the escaping fuel mixture to ignite?

How hot do your blowers get guys, do you ever touch them after you've had the car running for a while?