At 02:10 PM 3/4/2011, A PETER MARSH wrote:
>Smoothly, with no exhaust - the cat is on - and fires immediately
>the key is turned.

I ran my Fiat 128 engine for a few minutes with *no exhaust*
once.  Way cool!  It didn't really like to run at idle, but the blue
flames shooting out of the ports were intense, and it sounded like
gunfire.  Not nearly as foolish as the time I lit the back end of a
.30 cal tracer bullet in my living room to see what would
happen.  Longest five seconds of my life.  And nobody mentioned the smoke!

Yours,
David