I have an 84 Z-28 that I swapped a mild 350(~ 400 horse). My problem that has occurred since almost the beginning is I have an intermittent oil smoke situation. I will be running fine, then my inner James bond will emerge. The smoke will stop as suddenly and randomly as it starts. I am working on putting the car back on the road (was away for school) and I want to try to determine what the cause may be. Thanks in advance for any worthy effort to help.