Carlos Lee homered twice and Bud Norris turned in one of his best starts of the season to lead the Houston Astros to an 8-1 victory over the Chicago Cubs on Wednesday afternoon.

Hunter Pence added an RBI and Lance Berkman drew three walks and scored a run for the Astros, who have taken four of six from the Cubs in the last nine days.

Randy Wells (5-8) entered Wednesday’s contest riding a 14-inning scoreless streak and breezed through the first five frames, allowing one hit. But Berkman drew a walk leading off the sixth in front of Pence, who knotted the contest at 1-1 and ended Wells’ streak with an RBI double.

Lee came up after Pence and took a strike before turning on the 0-1 pitch and driving it over the wall in left to put Houston on top, 3-1. Lee added another two-run shot in the seventh - his 14th blast of the season - and the Astros piled on three more in the eighth to put the game away.

Norris (3-7) yielded an unearned run on four hits while walking three and striking out seven in six innings to pick up his first win since May 13. The right-hander came into Wednesday’s start having allowed at least four runs in each of his last three outings.