I also wrapped it in foil and cooked it over charcoal for around two hours.
After cooking the pork I sliced it as thin as possible. Some of the guests used barbecue sauce with the pork but it was fine without it. I have never tried an injectable marinade but next time I grill a pork roast I will try it.
My football predictions did not turn out well but I did enjoy watching the game and the fellowship.