In a medium size bowl put in your softened cream cheese and blend until creamy and smooth.
Add sugar and eggs and mix until blended
Add sour cream, and pumpkin and blend until smooth.
Mix in flour, vanilla, and spices unil mixture is creamy and smooth
Pour over crust and smooth out with a spatula.
Bake at 325 between and 1 hour 15 and 1 hour 20 minutes.
To ensure its done. edges will pull away from the sides of the baking dish, but when you shake the pan the middle will seem a little underdone.
Remove from the oven and let cool about 2 hours then transition to fridge. Let stand in fridge for several hours or overnight.