[bigbimmerfan]

Thankfully the factory idle was not tampered with. I found and fixed a loose connection on the vacuum hose between the MAF and the intake manifold. In addition I changed the air filter which was pretty gunked up and ran two bottles of Techron fuel system cleaner through. Car is running much better now. It's idling about 750 (800 in gear) and much smoother. Still not perfect but close enough that I think it's off the list for now.

Thanks for the suggestions.