Despite not getting the email saying the GW throttle body is in, and being told it would be a few weeks.  I checked back after a couple days and it was in stock.  And now on the way.  

Will it solve the stumble?  Maybe, but if not it will certainly be a good thing as several folks, including Dennis indicated the current one on my 84 is warn out.

Now just need to wait for it to arrive.

Eric Caron