400
Why do you think Ponyboy opened up to Jerry and told him the whole story about why he and Johnny were there.
He felt comfortable with him, probably had something to do with the fact that he kept calling Johnny and him heroes.
**Ponyboy was in a very emotional state, had just seen 2 of his closet friends come in with severe injuries and did not know what would happen to them. More so, he was still in after shock of the church burning.