I own a 1967 camaros with factory AC and MT . I just ordered a 383 cratemotor from engine factory .com . Is there a header that will work with this setup:confused:

I seriously doubt it! That's a very unusual combination!
OK, back to the real world. When a new company wants to start-up selling stuff to the hotrod world, ever notice how often their first product is for a first gen Camaro? Steven, your only problem will be too many to choose from.

steven, you should have no problem finding a set, go to summitracing.com
search for headers as if your car had a 350 or 327 or whatever small block they are all the same headers (as long as you didnt get vortec heads)
just make sure you get ones that work with a/c and manual trans

good luck