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

The edelbrock head castings DO crowd the factory style alternator more than a factory head, that should be a consideration. I see no reason for a 2.08 valve personally, you probably wont have enough port to support that, plus the shrouding of the "magnumish" chamber it probably needs. My 2 cents is set it up with a 2.02, make the intake port opening more sized to the LA size, chevy rocker, taller installed height, common spring diameter. And a smaller, more modern chamber.