Man your dreaming you won't even feel the difference, MSD makes a consol that you can use to change angle and degrees and stuff where you might get a difference but it cost $416.00. Even running NOS I don't feel a difference in my truck.
bigger wires wont give you more power or a smoother idle just more insulatuion around the wire it self ...the wire it self that carries the voltage from the coil is extremly small
now as for getting a smoother idle msd makes a unit that runs 320 from jegs or summit called the dis 2 works very well in fact msd now has a units for easier instalation and wiring to your coil assemblies:thumbup:
you wont notice a difference unless you start pushin more voltage. Then you have a better spark. If you push to much on stock wires you may run into problems with resistence and heat, which is why larger wires are used. SO...if you wanna make a difference change your coils or something else that will affect the voltage. These items im not sure on, sorry.