This will sound odd but bear with me on it.

I want to build an NA Cosworth engine but I want it to look good as well as performing well

Using a Pinto block, what is needed to use a YB head?
Can I use any head or is one more suited to NA work?
If I use an early head (with the original style cam cover) can I use a small turbo escort cam cover? If it doesn't bolt straight on, what do I need to do to get it to work?

I think that's it for now...