> The quad tip plug does not go into the head as far as the triple tip.  I
had
> the triple tip in my T4 engine and the head temps were hotter than the
single
> tip platinum (300-350).  I put in the quad tip plug and the head temp
dropped
> (225-275).
>

Wouldn't the lower head temps be caused by a less complete combustion?  I
always set up my air-cooled VWs to run a little richer to keep the heads and
the engine cooler.  If that assumption is correct, then the triple tip
platinum plug would make more power and theoretically improve fuel economy.
This, of course, to the detriment of engine life.

Any thoughts?

Chris