318 exhaust manifolds on a 360

Love my Dakota 360 manifolds. I too ported mine a bit, and even grinded a bit of metal to clear power steering pump on 72 cuda. I picked mine up from craigslist for $35. I hit them with high temp cast iron grey paint from Pour15, and they look awesome. And I too yanked those 318 corks with the stove and all. What a difference. From about 1 5/8 to 2-3/16" or so.

Beats the heck out of $750 headers.
But I don't take my car to a race track so there is no need for headers.
Heck, I rarely rev it past 4K