Ok, update time.
I replaced a few things, but didn't see much change until I replaced the pcv valve.
Then I got to thinking. In my experience with older VW's, the throttle screw should be backed all the way out before tryin to adjust the idle air screw. So, I backed the throttle all the way off, then backed the idle are all the way out to try and get highest idle possible. started it up and it idled steady at 600 rpm. Was a bit shocked. Does this seem right?
After that I adjusted both screws to get it to idle at 900, and that;s where we sit.
Last night I was heading home and the alternator shorted out and blew a fusible link. Got a refurb alternator and fusible links and put them in this morning. (That was before getting the idle set right.) Now, with idle set at 900 and basically new alternator, I have the flashing brake and charge lights. Everything I've read says that's the first sign of a bad alt. Really confused. Thinking I should go back and have the new alt checked. Battery seems to hold a charge just fine. About 12.5v. Showing 13.5ish when running. Any input?