Bottom end info?

The old MoPar "tips" section recomended there pocket ported 2.02 heads and a 284/.528 solid cam to run the time. The heads are old style units they had in mind. Also 4.30's and a 28 inch click.
The heads should be able to run high 12's unported.
You don't need to port the heads for 400 hp, but it would help.