Spark/ignition issues?

dgc333 said
Unless you are reving the engine to 6000 rpm all the time the orange box or chrome for that matter will not buy you anything. What those MP performance boxes do is extend th rpm range, they do not do anything for low rpm performance.

What happens when the engine revs past the limits of the orange box? Does it misfire? Will the orange box act as a sort of poor man's rev limiter?