As near to the end of Cherrywood Road as you can near to its junction with Bordesley Green. Free on road parking. Five minutes walk to the ground and convenient to get back to the A38M and M6 via Bordesley Green Rd.
I always recommend drinking in town. Some great craft ale establishments around New St.
Lots of building work and road closures at the moment though so might be more sensible to leave plenty of time to get to the ground.
I'm watching this one from the giddy heights of the directors' box so...