Hey Ken, put the two smaller pieces on the top rack and the larger ones the next rack down. I think they should fit. But, always put the small meat on the top shelf/rack and the larger one on the next shelf/rack down. When I do a Boston Butt, I use the middle rack position. Not sure what the position is for right above the smoke box. Let me know if I can help you any more. As my ribs have been in now a little over 2.5 hrs.
