A thread came up on the Rennlist 911 board about a new CDI replacement, from a company from Australia, "Link Electrosystems" that makes engine management systems offering a replacement CDI box. Link's web page can be found here, but makes no mention of any ignition products.
Hey! Credit where it is due! The Aussies might have invented MoTeC, Autronic and Haltech (all better than Link) but
New Zealand is where Link comes from!!!! NZ site is here:
http://www.link-electro.co.nz/home.html
As an aside, I reckon their Ignition Link (ignition mapping only) would be an awesome addition to a CIS car.
The MW stuff is from Aussie though.
More interesting is the twin plug adaptation. Their twin plug CDI is just a standard unit with higher output, and uses the stock harness. All you need to do is add a second coil and connect the standard 2 wires to both, either by splicing in a splitter, or by making a simple pair of jumper wires between the terminals on the coils.
I don't know enough to comment on whether this is ok. For clarity (for other people) I saw on the Rennlist thread you are using a 964 twin plug dizzy. Two coils means twin plug dizzy (or RSR dizzy).
I'm gonna follow this up for my own car (twin plug, MoTec, no CDI, plug fouler with S cams). I figure I can either insert 1 or 2 of the MW CDIs between the coil and ignitor.
Cam