Sounds like the needle valve got stuck open to me.

As to what caused it... Dunno. Could be ice, could be debris, check your fuel system out -- make sure you don't have any crap circulating in your gas.


~#~#~#~#~
1946 Chevrolet 3600 - "Old Number Seven"

Cavalry's Here. Cavalry's a frightened guy with a rock, but it's here.