When I brought my 49 3600 home a month ago and fired it up, it didn't smoke. After the teething pains of a complete tune up and valve adjustment it's been running great. I've done 2 hot oil changes. The valves were set at .10 and .20 cold after my fist attempt that had them too tight and I haven't readjusted hot. The Rochester is running rich and my plugs have some black soot, but no sign of oil fouling.( by the way, if any one has a main metering jet for a 49 W-1 I could try out my other carb!) It has been putting out some blue smoke while running for a week now. Not just when you start it up, but some blue smoke as it is driving, and the more RPM's the more smoke. It's using about 3/4 qt of oil a day (between 10 and 25 miles of driving). I did put a quart of transmission fluid Slowly down the carb about 2 weeks ago and have soaked the valve guides in transmission fluid/MMO when I did the valve adjustment. I haven't done a compression test yet and I'm not sure that that would tell me why it's smoking, but I can do one. I have a good running 235 that I had originally planned to put in later, so I can always do the swap, but I'm wondering if you guys have any other ideas. I plan on doing a hot valve adjustment and pulling the plugs and soaking the cylinders with transmission fluid mixed with MMO, but thays all I can think of to do. I din't want to O/H the 216 and I really didn't want to do the swap till fall...