Bring 4 cups water to a boil in a large pot over high heat. Clean clams then place them in the boiling water for about 1 minute. The clams will begin to open. Transfer the open clams to a colander and run cold water over them to cool them quickly. Slide a knife in the crack and open. Any clams that do not open wide enough to slide a knife into should be discarded. Put the clam meat on paper towels and discard the shells. Pat the clam meat dry.
Shape the dough and place it on a pizza pan or wooden peel. Place the clams on the pizza crust, leaving a 1-inch border. Sprinkle with the Romano, oregano, pepper, and garlic. Drizzle the olive oil over the toppings.
Bake the pizza for about 5-8 minutes, until the crust is deep brown and the toppings are bubbling. Check underneath with a metal spatula to ensure the bottom crust is deep brown too.