Suggestions for new design Aluminum Mopar SB clean slate (kind of) cylinder heads

It would be an improvement. Of course that’s exactly what a W5 head is except it uses an offset rocker.

Chrysler didn’t use an offset rocker for no reason.
I agree, if you don't have an offset rockers you can have a really good Edelbrock rpm and that's it, with an offset rocker the cross section can be opened up to feed whatever you want.
That's a fact.
Chrysler cylinder heads are always running way to small for the cubic inch, for drivability reasons of course from the factory.
The only **** In my opinion which is good from the factory is, max wedge 413-426, 426 hemi, and a X head on a 340 & that's just barely. smaller cubes and big ports.
Even though gm can suck it....they put good cylinder heads out there for stuff that's kinda size matched, the ls6 is got a nice big port, lt5 nice big raised runner ports. If I wasn't such a hater & broke that lt5 would be well deserving of a tunnel ram and 2 dominators.
Chrysler sucked at changing on the fly, ( my opinion... probably agreeable though)