Exhaust smoke.

Roadart said
Just noticed light exhaust ..smoke comming off the left bank(left exhaust pipe)It is in a 72 dart,318,4bbl ,headers. Engine was rebuilt about 4 years ago. The right side has no sign of smoke. Ideas???

We had a couple of cars that had a valve cover leaking and it would soak into the exhaust manifold gaskets.

Those would smoke for about 5 minutes until it burned the oil out, then clear up.