Preheat oven to 325°F and grease a 9-inch springform pan.
In a mixing bowl, combine graham cracker crumbs, sugar, melted butter, and 1 tablespoon lemon zest. Press mixture onto the bottom of the prepared pan.
Bake crust for 10 minutes or until set. Let cool completely.
In a large mixing bowl, beat Norman's Kosher Cholov Yisroel Cream Cheese and 1 cup sugar until fluffy. Add eggs one at a time, beating well after each addition.
Stir in sour cream, flour, vanilla extract, and remaining lemon zest. Pour mixture over the cooled crust.
In a small saucepan, heat strawberry jam over low heat until melted. Stir in chopped strawberries. Spoon mixture over the cheesecake filling.
Bake for 55-60 minutes or until center is almost set. Let cool to room temperature, then refrigerate for at least 2 hours or overnight.
In a mixing bowl, beat heavy cream, powdered sugar, and vanilla extract until stiff peaks form. Spread whipped cream over the cheesecake just before serving.