Process the chili peppers, 6 of the garlic cloves & the water in a food processor or blender until it makes a pungent, soup-like mixture. Take care when opening up the top, as the fumes will be strong. Bring a large pan of boiling salted water to the boil. Pour the chili & garlic mixture through a sieve into the boiling water; save or discard the solids as desired. Add the pasta to this seasoned boiling water & cook until al dente. Drain. Toss the hot, drained pasta with the olive oil & the parsley. Season with salt & serve.