The Blacks will need 160 for victory in the first Twenty20 international against Zimbabwe at Eden Park tonight.Zimbabwe won the toss and elected to bat, the first time in their tour, and made a healthy 159/8 after a half century to Hamilton Masakadza and a quickfire 48 to Elton Chigumbura.Debutants Michael Bates and Roneel Hira were impressive in their first game at the international level with figures of 3/31 and 1/22 respectively.The Black Caps are still heavily favoured to chase down the total on the Auckland ground which has a flat pitch and shorter boundaries.