The Twins own the best record in baseball, and it’s no longer possible to argue that an easy schedule is the reason. Jason Castro homered, doubled and drove in four runs, Byron Buxton tripled home a run and made another spectacular running catch, and Jose Berrios seemed to work his way into and out of trouble on a whim. It all added up to an 8-2 victory over the AL West-leading Houston Astros in Target Field on Thursday, and an impressive victory in the season series against a true pennant contender. “It’s huge for us. … We got a feeling of what we can do through the season,” said Twins infielder Marwin Gonzalez, a former Astros player who has some experience at winning championships. “In the past few weeks, we played good ball against Philadelphia and we lost two games by one run. We played good ball against New York, one of the better teams in the National League, too. We have been showing we can compete.” Houston’s stated goal for 2019, two seasons after its first World Seri...