Remove roast from the refrigerator 2 hours before cooking. Salt the roast, wrap it in plastic wrap and let it come to room temperature.
Preheat the oven to 375 degrees. Tie roast with butchers twine to help it cook more evenly.
Rub the roast with olive oil and then sprinkle it all over with salt and pepper. With a sharp paring knife, make small incisions all around the roast. Put a sliver of garlic in each cut.
Place the roast on a rack in a roasting pan, fatty side up. Brown roast in the oven for 30 minutes, then lower the heat to 225 degrees.
Roast to an internal temperature of 135 degrees (for medium rare.) The roast should cook for another 1 1/2 to 2 hours, but the shape of the roast will affect the roasting time. Start checking the temperature at an hour.
When the roast is done, remove from the oven to a baking sheet and tent with foil. Allow the roast to rest for 20 to 30 minutes. If you cut into the roast before then, you will loose most of the juices.
While the roast is resting, deglaze roasting pan with a little red wine or beef stock. Transfer to a small saucepan and bring to a simmer. If there are not enough drippings in the roasting pan, add a little butter. Add cornstarch/water mixture and cook until thickened. Add salt and pepper to taste.
Alternatively, see Marsala Wine Sauce for Roast recipe.