looking for the right intake for my 426 stroker

Intended use, drag race only? Or prostreet? If you are using a Dominator carb, I would try the square bore M-1 or Victor and use the carb adapter to get up to the Dominator. Signal will be better and should have no issue screaming into the upper limits.
a little drag racing and running road courses , think I'll be running an 780 or 850 holley , trying to keep it simple , upper limits for me 6500 rpm trying to keep it simple .
Thanks