Through all the tough setbacks, both on and off the field, Chris Capuano kept thinking there was still plenty of life left in that beaten-up left arm. Count the Atlanta Braves among his believers. Capuano pitched his best game ever, tossing a two-hitter and striking out a career-high 13 as the New York Mets blanked the Braves 6-0 Friday night in their final matchup before taking a break because of Hurricane Irene.