[brucepick]

Thanks guys.
I previously gave it a seafoam treatment, twice. A couple months ago. Instead of sucking it in via a vacuum hose I poured it in slowly, into the big corrugated rubber air intake hose - right after the air cleaner which I temporarily disconnected. I've used the vacuum-hose method before on my Volvo 240, this method seemed to work the same - made lots of smoke and needed extra rpms to keep the idle going. And, lots of smoke and junk when restarting afterwards. I'm sure I cleaned out lots of junk that way, myself.

The shop used a cleaner they sucked into the engine via a vacuum line. Also supposedly produced lots of smoke/junk when restarting afterwards - but I wasn't there for that. Seems to run better now though.