> Well, yes.  But I'd argue that considering that multi-electrode plugs
> didn't even exist yet when the Vanagon's engine was designed, its
> ignition system must have been designed to work okay with conventional
> plugs.

Oh, this is beginning to sound like the synthetic oil debate of recent.

I put single electrode plugs in my Vanagon - engine runs OK.
I put Bosh +4 plugs in there - engine runs wonderfully (much better than
just OK)

All the proof I need to use Bosch +4 plugs.

Chris S.
'85 Wolfsburg Westy "Camel"
http://www.knology.net/~vw/dadada.jpg