So I just rebuilt everything rotor housing up and went on the first drive yesterday and smoked out and entire city block. The car is filling with smoke. It's currently cut off before the 3rd cat. At idle it will smoke very little than a couple seconds later it will go away but at high rpms it smokes like a chimney. When I bought this car in October the owner said it smoked on start up but went away. Any suggestions??

 

how many miles do you have on the engine since the rebuild?