Preheat to 350. Cook pasta to package. Drain and rinse under cold water drain again. In a medium bowl, combine ricotta, eggs, 1/2c of the parmesan, salt, pepper and parsley. Mix to blend well. Toss ziti with 2 cups of marina sauce.Place half the pasta in a baking dish. Top with ricotta mixture and half mozz. Top with rest pasta, sauce, mozz and parmesan. Bake 30 -35 minutes.