The Reds score another 14 runs to beat the Cubs, 14 – 2. Ken Griffey hits a grand slam, one of six homers hit by the Reds. Tony Perez has a pair with George Foster, Dan Driessen, and Pete Rose leaving the park as well.

On May 9, 1976 — The Reds score another 14 runs to beat the Cubs, 14 – 2. Ken Griffey hits a grand slam, one of six homers hit by the Reds. Tony Perez has a pair with George Foster, Dan Driessen, and Pete Rose leaving the park as well.

Source:
Baseball Reference May 9