Nick Suzuki scored and set up two more including Liam Hawel's game winner early in the third and the Guelph Storm edged Ottawa 5-4 to knot the Roberston Cup final at two games apiece.
The Storm were up 5-2 just two-and-a-half minutes into the final frame and withstood a late push by the 67's to earn the win.
Alexey Toropchenko scored twice for the Storm. Nate Schnarr was the first Storm player on the board with a goal at 12:04 of the first.
Anthony Popovich earned the win with 30 saves.
Game 5 is Friday in Ottawa.