<VV> Metallic taste in mouth after Corvairing

[Russ Moorhouse]

I was just wondering if anyone else has experienced this, while driving 
their Corvairs?  It occurred with the stock mufflers and with the Clark's 
trombones.  It doesn't matter whether I have the heater on and the windows 
rolled up, or no heat and windows all rolled down.

When I did the heads, all new heater hoses, gaskets, seals, etc were 
replaced, even the gaskets for the bottom tin that the thermostats mount in. 
I don't smell and exhaust fumes in the car.  This metallic taste in your 
mouth lasts for an hour or so after driving it.  It didn't affect the taste 
of doughnuts I went out a brought home in it this morning.  I even had the 
windows up and the heater on.

Any idea what's causing it?

Russ