Rub the roast all over with the cut sides of the garlic halves.
Coat a large skillet with olive oil and brown the roast on all sides.
Remove the roast to a roasting pan. To the pan drippings in the skillet, add water, Heinz 57 sauce, soy sauce, salt and pepper; mix well then pour over roast.
Roast the pork at 375°
hour; basting occasionally with pan drippings.
Reduce oven temperature to 300° .
for 1 hour longer, basting occasionally with pan drippings.