if you have closed your gaps a significant amount to acheive that power, then by adding the complete CDI modules and high energy coils, you are going to be able to open the gaps back up, get a larger spark and more efficient burning of the mixture.
not to mention it will be more reliable, if your plugs get a little old worn, fouled/whatever the ignition system will still have the power to jump the gap under high cylinder pressures.
you should notice a fair gain in response, even if the outright power doesn't increase by a huge amount.