Welcome Blacktop! Yes, that is somewhat normal if it's been sitting for a while, as long as the smoke isn't like a thick acrid smoke screen (see WM's engine post!). The condition is called "wet stacking"...google that term and you'll see what it is.
Give it a good hard run...100 miles or so at highway speed....it'll clear out and run clean.
Is this a turbo truck or an NA truck? If NA, the do tend to be a little more smoky than the turbo ones...but a turbo is easy to add later if you want....