> A good friend of mine traced billowing black smoke out the exhaust to a bad
> ground connection in the engine compartment. 

There is nothing more important than a good ground connection.  
A buddy of mine traced a nagging uneven tire wear problem to 
a bad ground connection. ;^)

-- 
   Jerry Huff           Data General       _____     Brick
   Unix Development     RTP, NC 27709     | |_|_\      on       \/
   huff@dg-rtp.dg.com   (919)248-6277     `0---0'    Wheels    \/\/