Some things worth noting about Antony Flew, that I have discovered:
He did not believe in the afterlife; divine providence; the power of prayer; all creeds; in any religion. He did not believe in a personal God.
He is not a good example of conversion to bring up to the New Atheist.
Proverbs 1:7 New American Standard Bible (NASB)
7 The fear of the Lord is the beginning of knowledge;
Fools despise wisdom and instruction.