Though it is not the same animal, I added a Pertronics unit to my '78 Superbug and it made a noticable improvement.

http://www.pertronix.com/

 -------------- Original message ----------------------
From: Nathaniel Poole <npoole@TELUS.NET>
> Anyone else have a problem with electronic points in the type 4 motor? My
> '80 Vanagon was running great before I installed these points from
> Hot-Spark.com, and now it's doing something weird - it idles fine, and revs
> fine, but won't idle after revving, just stalls. Every time. If I keep the
> RPMs up, it's okay, but let off the gas and poof. If I don't touch the gas
> it's great. Timing is on spec.
>
> My gut tells me the CPU doesn't like the signal somehow. And now I'm
> noticing that these guys don't have a help line or even a phone number,
> which is not a good sign, but we'll see if they respond to my email.
>
> Any suggestions?
>
> Nathaniel