In a bowl combine all the rub ingredients and mix well. Reserve some of the <g class="gr_ gr_198 gr-alert gr_gramm Grammar multiReplace" id="198" data-gr-id="198">rub</g> to add to the shredded pork after cooking if desired.
Rub the rub onto the roast be sure to cover all sides of the roast with the rub.
Preheat the barbecue to 225 degrees. Place the pork roast in the barbecue on the grill and cook for 3 hours.
Mix the mop sauce ingredient and baste the roast once an hour while cooking.
After the first 3 hours of cooking, move the roast to a barbecue safe pan or disposable foil pan and turn up the heat to 275 degrees. Continue to cook until the roast temperature reaches 190 degrees. About 6 hours.
Once done let the roast rest. Remove the fat portion from the outside and discard.
Shred the meat. Removing any fat as you find it and discard.
Add the reserved rub or barbecue sauce and mix well.
Serve <g class="gr_ gr_161 gr-alert gr_gramm Grammar multiReplace" id="161" data-gr-id="161">on</g> homemade bread or buns.