What Doubting Thomas said.
There is no out for Christians on the Pork ban (and other 'sins') in the Bible. In fact preachers of all denominations avoid this topic at the pulpit and rarely even in pamphlets.
Why? Because there's only one good answer for why Christians eat pork despite the Old Testament ban. Because we ate pork before Christianity or Judaism or these dietary laws were established ONLY IN THOSE CULTURES being invented.
Something, not a religion, made pork taboo in that part of the world years before the Torah. This something (disease, inability to keep it fresh, properly cooked until fully consumed) didn't effect European cultures as much or more to the point, like solstice celebrations, Christianity couldn't control it that much.