yeah the 4 ports are a lot better but the boost is there quicker and holds steadier with co2. no need to wait for manifold pressure.
http://www.msdignition.com/Products/RPM/Timing_Controls/RPM_Controls/7562_-_Programmable_Launch_Boost_Controller.aspx
go down toward the bottom and you can download the pro data software. instructions,wiring,editor is all on it under help menu. Really the only thing that takes a bit settin up are the PID's