Background: I recently had the 351W engine in my car rebuilt after I sloshed the
oil away from the
oil pump during an autocross and tore up the old cam drive gear. The engine had less than 1,000 miles on it from a previous rebuild when it happened. The cylinders and flat top Keith Black pistons were undamaged and left as is. The crank was removed, polished, and reinstalled with new main and rod bearings. A new Comp cams hydraulic roller cam (series 35000) with matching tappets was installed. I also went with new Edelbrock Victor Jr. heads and kept the existing Edelbrock Performer intake and Holley 750 CFM carb. I replaced the distributor with a billet model from MSD. Crankcase ventilation is via one hose from a fitting in each valve cover to a vented
oil catch can.
Situation: I have a little more than 100 easy miles on the engine since the breakin. I can tell from the lumpy idle that this cam is quite a bit more radical than the one I had before. Now, when the engine reaches operating temperature, a small but steady trail of smoke come from the vent on the catch can while the engine is idling. I suspect it is also venting smoke while cruising, but I'm unable to confirm.
Question: Is it normal for an engine with these kinds of components to vent in the way I described? If not, what should I check as possible causes of the venting? Any other suggestions?
Thanks.