Replacing the EGR valve on a 1985 Chevrolet Caprice Classic

In this video, I'm replacing the exhaust gas recirculation (EGR) valve on my 1985 Caprice Classic with a 5.0L 305cid V8 engine; ~152,730 miles.
The symptoms were very low and rough idle on warm engine, and stalling when coming to a stop in local driving. I suspected the EGR valve based on information in the shop manual, and because I had previously repaired the EGR valve several years ago. You'll see (hear) the symptoms before the repair, and see (hear) the difference after the repair. This should be suitable for the 1977-1990 Caprice Classic sedan.
I purchased the EGR valve from RockAuto, part # EGV435 (Standard Motor Products), specific to the 5.0L 305cid V8 engine. This is not sponsored by RockAuto or by Standard Motor Products.