The battle for funds for streetscape improvements in the Canal District has been a long, slow haul. But Congressman Jim McGovern told a group of approximately 20 Worcester business leaders on Tuesday night that he expects federal stimulus money to come through for the improvements relatively soon. And he’s not mincing words about his prediction. “I will be disappointed and surprised if streetscape money doesn’t come through,” McGovern told the Canal District Business Association meeting held at Blackstone Tap. “This is the biggest push I’ve made. If it doesn’t come through, I’ll be awfully bullshit.” McGovern added that a decision by Gov. Deval Patrick’s administration on the $7.5 million request made by the city is expected “in the next month or two.” The city submitted a 72-page proposal for “shovel-ready” projects, including sidewalks, lighting and benches for the Green and Water Street neighborhood, including cross streets.