Herb McCandless states in his YouTube Autobiography that he developed a W2 Single plane in the Early 70's after he quit racing Pro Stock during the Hemi/Weight break debacles. He said he Developed it for Edelbrock and it was supposed to become the Victor 340...and Apparently it did...But it Became the SB Chevy Victor FIRST!! Edelbrock stole the design for the Chevy and then it became the Mopar.

The Victor 340 (as anybody who runs one knows) has super thick runner dividers, but you can really port the heck out of them. I think maybe Edelbrock fattened the dividers because what they copied made for too much cross section for a typical "hot Street" small block of the day. The reduced the ports by thickening the runners...figuring racers were going to port them anyway. Just my "theory, I can;t imagine why else they would make the runners so chunky otherwise.

Maybe Herb Jr can ask Sr to elaborate but I believe Edelbrock Herbs contention that copied/stole/borrowed Herbs design....because from a short distance you can hardly tell a Victor SB Mopar/Victor Jr SB Chevy apart.