66 Barracuda owners-exhaust question

I have a 360 for my 66 Barracuda. It will have an auto trans and manual steering and brakes. The more I read, the less I think I know. Headers are not in the budget so iron manifolds it must be. I read one place this works, another it doesn't. Some say use this year, others say it wont work.

So the big question is what have you folks put on your 66's and any tips etc.
Facts would be a big help.
Thanks,
Mike