did any of you used to go down chinky tunnel for a chase?

Yes, lots.
My friends lived on Beckhampton Street, and our nights were consumed with getting chased over the dual carriageway!
I wasn't alone then.
We once got chased by some mad man with a machete, mind you we were throwing bricks down the tunnel accompanied with lots of 13 year old abuse!
yeah we had the mechete man after us too.our weapons of choice were stink bombs and smoke bombs.
if you ran through the tunnel and up the steps it brought you up by that model shop.
saturday chinky tunnel chases were legendary