Has anyone upgraded the wired and ignition system on the 348? I am considering a hotter spark via better wires and maybe a module. Has anyone done this before?
Does it matter? Really...if the o2 sensor read as designed perhaps 14/1-13/1 then you have coordinated spark with the fuel mixture as designed. I am not sure what a better spark would do. If you had more to burn then maybe you need to change the ignition source or the speed of it so it would all burn and the o2 sensors would read proper again. btw I used those cheap magnacore wires and while they had a crappy seal to the valve covers they functioned same as OEM as far as I could tell.
