Sarah is organizing a fundraising event. She plans to sell tickets in two phases. In the first phase, she sold 120 tickets at $5 each. In the second phase, she aims to sell the remaining tickets to reach her goal of $1000 in total sales. If she plans to sell the remaining tickets at $8 each, how many tickets does she need to sell in the second phase to meet her fundraising goal? Let's think step by step and output the final answer within \boxed{}.
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