I took a 1/4 teaspoon and with the throttle held at 2000 i slowly sprinkled into the carb. Closed the hood and drove it like i stole it for a half hour. It has never not smoked since rebuilding, now its fabulous!
I have read articles that back in the 50's it was widely used at GM car dealerships because a lot of the new cars had smoking issues due to glazing on the cylinder walls. Supposedly the Bonami removes that glazing to allow for better ring seal.