When draining the pan on a 350 start taking the bolts out at the right front corner and work counter clock wise around. When you get to the right rear loosen one bolt before the angle in the pan. Go back to the right corner and continue taking the bolts out working your way back. When you get to the angle loosen those bolts and then you can control the oil coming out from the left front corner. Remove the remaing bolts and you have the pan off.