[V8] black soot out rear pipes

[Buchholz, Steven]

... black soot on exhaust is more a sign that the fuel pressure regulator is
in need of replacement IME ... 

The top end cleaner/seafoam is more for use in blue smoke, oil burning
situations ... which also plague the V8 ... at least the 3.6l variants.  I
used the SeaFoam on #344, and it seems to have done the trick on the blue
smoke ... of course on #2 the blue smoke was resolved with a powerplant swap
... 

Steve B
San Jose, CA (USA)
> 
>   A fellow V8'er friend of mine is having a problem,
> he notices black smoke out the rear tail pipes while
> he's accelerating. I saie it's just carbon build up &
> he should run a few bottles of Techron through the
> car. But a fellow lister mentioned some GM top end
> cleaner? You use the vacum line from the intake
> manifold to such this stuff through to the combustion
> chamber. Does this sound familiar to anyone?
>  If anyones used this or now what I'm talking about
> could I get some info from you.