There’s a new spot to tailgate for 49ers games that will provide tacos, barbecue, beer, wine and cocktails in a massive space just a short walk from Levi’s Stadium. Clara’s Junction, an overhaul of what was once a Carl’s Jr., will have its grand opening on Thursday, Sept. 26, when the 18,000-square-foot space will turn on the grills and open the taps just three days before the 49ers host the New England Patriots for a 1:05 p.m. PT game on Sunday.