its much deeper then that, when your making that much power and that much rpm, a lot of people are having problems with spark.
ohio boys had the same problem, so did guys from stenod, and others runnign in the 7's.
guys with distributes are of coarse immune, so after your making 1500rwhp everyone is starting to think to switch to a distributor setup.
BS3 is also looking into the problems.
some have kind of fixed it by changing the dwell time, as they have found that if they are running a 16v system and set it to long it burns out part of the board on the BS3.