http://chevy.oldcarmanualproject.com/chevyresto/58t108.htmThis is a 261, but I guess it's about the same.
624 dry weight. 783 with transmission.
It's damned heavy, I know that since me and my brother pushed a 235 and PG together up on a trailer, only the 2 of us.
PUKE-heavy. And it was obvious that a 350/350 combo is lighter.
/Ulf