Now that is how a smoker should work. Great job Bill. Remember back then these engines where not as efficient as they are today. Smoke from any engine was not an uncommon thing. Especially in colder climates. Tanks did smoke, these were huge engines for the day and used huge amounts of fuel. Do you really think they were tuned too peak performance. i doubt it.  <div> </div><div> The sad part of it is now I only have one tank left that can actually use a smoker. wish these where around a year ago.</div>