Maintain a good smoking temperature around 225 degrees F. with a good, smoky fire. Refer to your smokers operating manual for information about your specific smoker. It will take about 1 to 1 1/4 hours per pound of meat to smoke a pork roast. Make sure you have plenty of time because under cooking will result in tough meat that just isn't barbecue.
During the smoking you may choose to apply a mop. A mop will help add moisture to the surface of the meat while it cooks and help add additional flavor.