Does anyone know what the casting numbers would be for the 1962-1964 MAX WEDGE HEADS and why won't Edelbrock performer intake fit if they are put on a 1976 440?

Why would you want to rerun this intake with max wedge heads?
https://www.summitracing.com/parts/edl-2191?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-edelbrock&gclid=Cj0KCQiAmafhBRDUARIsACOKEROh_kCBQx eCObwlMses6AD06jb2LZTu71CMYp3rHqXa3CQKaEw_Aq4aAqvG EALw_wcB

Here is a side by side of a max head and a standard head, these are the intake side.
https://goo.gl/images/aejRgM