OK, I was able to recheck the spec sheet and the actual official Atomic repair procedures document, and it is indeed 33 ft-lbs. (I see I had a typo in my first reply. ft-lbs, not ft/lbs. )
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Looking at the Atomic book it is 21 ft pounds that is what it say' hope this works for you. Before you go to 33 ft pounds.
My copies of the manufacturer parts diagram and repair manual both say 33ft lbs, with a couple of instances of 29ft lbs (for the same part, which is strange, but it's still close enough). Are you sure you are looking at Atomic?