Bell Boost-a-spark will up the voltage on the fuel pump to 12volt (or more) for full effeciency. I believe we got into a discussion about it being around 8-9 volts most times, but at WOT the fuel pump would function at 12 volts (sometimes.) This was just a way of upping the voltage of the fuel pump.
If your assuming it would help with Ash's peacemaker who knows.. and why would you ask? If you add this to any upgraded Z I am sure it would help in some fashion of performance. Call Kuah @ SPL parts (1-866-spl-part) and he'll give you the run down on it.