The good news: FFR's 5.0L Coyote headers also have the bolt batter for the 4.6L.
The bad news: They don't fit! At least not without cutting off part of the flange. I was disappointed by this because they are coated. So cutting into the metal defeats the purpose of having them coated.
ALSO
They require different j-pipes - an extra expense
AND
They require the steering re-locator - also an extra expense.
None of this was communicated when I went to buy the headers. FFR agreed to swap the j-pipes for me (but the old ones still cost $40 to ship back) and gave me a discount on the re-loctor. After all said and done it would have been much cheaper to go with the 4 valve headers and adapter plates from Late Model Restoration. *sigh*