He has generally been 90-91 though he has touched 94 in the past. The hope has always been that with his size he would pick up some velocity as he filled out. He has picked up a little, but most of his effectiveness comes from deception in his delivery and that still is effective.
I am less concerned with Falter than Jones. A 2-inning reliever backing up a right-handed starter might be his long term role.