Since I have all eletrical schemes for an M42 engine I asked the kind people of Split Second to write specific M42 installation instructions, based on my schemes. These are a garantee to make a Split Second kit work on your M42. Even more, if someone can figure it out ,you can even use this manual to perform the conversion yourself using M44 or some other MAF sensor.
As Split Second was so helpful I will definitely be buying a kit from them in the nearby future. I'll post findings here.
If anyone is interested in the M42 installation manual, feel free to drop me an email:
kirsten.geukens@hotmail.com (or any other electrical circuit you wish to know about in an M42)