Hughes Edelbrock heads : Smallblock

Well there's one nay. You have never said what is wrong with there work and what was wrong with the heads. You just *****. Please describe.

I have the big mouths. I have not had the chance to use them yet.
To answer your questions and IMO;

IMO, no, there not to big for stock stroke 340/360 engines. Your mention of cam carb etc... upgrades should not be timid.

Going with the CNC provides enough flow for 600+ HP. (Laymans way of roughly calculating HP, head flow CFM X's 2)
If you can go with a 2.08 on the regular CNC job, go for it.
If you can only get the 2.08 with the Bug Mouth heads, that move is up to you.

You have to decide if the extra money spent the Big Mouth heads is worth it or needed.