In a small food processor, combine garlic, salt, pepper flakes and paprika. Process until smooth. Add 1/2 cup of the oil and process until smooth. In a glass mixing bowl, toss the meat with the pureed mixture. Cover with plastic wrap and place in the refrigerator, to marinate at least 8 hours, overnight if possible. In a cataplana (or a large saute pan with a lid), over medium heat, add the remaining 1/2 cup of oil. When the oil is hot, add the onions. Season with salt. Saute for 2 minutes. Add the pork and saute for 4 minutes. Add the wine and bring to a simmer. Add the clams, and season with salt. Cover and cook for 15 to 20 minutes, shaking the pan occasionally. Remove from the heat and leave covered for 5 minutes. Remove any shells that do not open. Stir in the parsley. Serve in individual serving bowls with crusty bread.