Well, I've finally got the idle problem fixed! After having the carter professionally rebuilt (and you'd be surprised how few carburetor mechanics there are left these days), we're working out the final little putts in the idle before this car will finally, at long last, be roadworthy.
I did, however make a rather puzzling discovery that I'm putting out to the general population since I'm somewhat at a loss:
This 87 has what appears to be the mid to high range stereo system being that it's fully digital and has AM/FM/Cassette. I also happened to discover that I have four 4" round speakers as part of my boxes o' parts that came bundled with the vehicle which I fully intend to install since the rear deck speakers are clearly worn from age. However, when I took a look at the front passenger door, I made the startling discovery that there were no speaker holes or grilles in the panel! After going to the original driver's door and checking it, I found it too had no speaker mounting. I then spent some time searching the front of the interior but being unable to find a front pair of speakers. The new driver's door is bare and has no clear mounting hardware anywhere. I also noted that the glove box speaker mount had the original blank plate still in place, confirming that there was never a dash mounted speaker either.
So my questions are:
1. Would this car have been equipped with AM/FM/Cassette and only the two rear speakers?
2. Are the front speakers hiding somewhere that I wouldn't expect?