Warm the olive oil in a large frying pan over medium heat. Add the garlic and cook for 1 minute. Increase the heat to high, add the white wine, and simmer until reduced by 1/2, 1 to 2 minutes. Add the clams, cover, and cook until the shells open, 3 to 5 minutes. Discard any that do not open. Season with salt and pepper. Bring a large pot of salted water to a boil. Add the pasta and cook until al dente, 3 to 4 minutes. Drain, and toss immediately with the clams, their sauce, the chopped parsley, and the Calabrian peppers or pepper flakes. Garnish with parsley sprigs, and serve immediately.