Bring a large pot of salted water to a boil and cook pasta until it is tender but still firm to the bite, stirring occasionally, about 8 minutes. Whisk the lemon juice, oil and Parmesan in a bowl to blend.
Drain the pasta and reserve approximately 1 c. of the pasta water. Toss the pasta with the lemon sauce, and pasta water, adding 1/4 c. at a time as needed to moisten. Season with salt and pepper. Garnish with lemon zest and chopped basil.