[Bill Wells]

maybe dumb on my part, as i am sure you have done this : but is carb set too rich at idle..maybe it is something easy as that . i saw one where guy claimed carb was set up perfectly but alas, they adjusted the idle screw only and NOT all 4 corners. when 4 corners were adjusted, each was out 1-1/2 turns and should have been at 3/4 when it was done right. til then, smoke at idle ,intermittently one side then the other and car ran fine at speed, but smoked at idle. i am sure you have done that, but pass it on in case it was overlooked. bill