As I understand the replies my 67 Block being a B series block would fit the 1957 dual quad manifold as the manifold would not have been designed to fit the RB raised block 58-62 years, it this a correct statement?
Essentially yes. Bob (inadvertently) clouded the issue with the 383RB commentary. The back story is that when one of Trenton's engine lines geared up to support 413RB production they impacted 383B production. To combat this they created an oddballl 383RB which only appeared for two years and only supported US-built Chrysler Windsors and Saratogas.
BTW - that is a 1958 or later intake. It just has a '57 casting date.
Might try an Holley intake for that block with dual carb set up. Could search E bay just might be one on their. Had two double pumper's on a 440. Back in the day. Bought it form Big Daddy's in Tampa Fl.