My first 30, 1990 325i, manual with 3.73 lsd. Has new Bosch O2 sensor, new blue water temp sensor, new plugs, rotor, cap, ignition wires. Have not done a smoke test but all vac hoses seem to be in good shape. Car starts good and settles into an idle of around 650 rpm. Overall the engine seems to run good but it seems to be running a little rich. Cannot actually smell raw gasoline but it has a rich smell to the exhaust. I am getting around 19/20 miles to the gallon. How does this compare with what you guys are getting? Thanks