Insert a meat probe into the meat, so the end is in the centre but not touching the bone. Cook for 1 hour 20 minutes per lb in total, so an 8 lb roast will have another 3.5 hours (it's already cooked for 7 hours right) 10 lb roast another 6 hours. Cook until the meat reaches 195 anyhow, but the above is a good marker. Once cooked, wrap in foil let it sit in for at least 1 hour before shredding. Serve in a soft white bap, you can use BBQ sauce or apple Sauce (British twist) if you like.