Missed on this combo?

Brodix still makes all 3 versions of the small block Chrysler head.

A “spec” head
B1-BA
B1-BA-MC

The B1-BA is much like the Edelbrock head.

The MC (moved centerline) has the most potential but require some thought before useage. There not a OOTB into the block head.

Brodix has porting services. Check there web site for there listed flow numbers.
From what I remember, that head is about equal-ish,
(take that for what it is worth, you decide, but about equal)
to a well ported W5.

They are a bit more work than W5’s.
But a W5’s can be hit or miss because of the potential crappy casting at the foundry.
(I think they screwed Chrysler myself.)

Visit there web site.