Didn't recognize your new name.
1) OK, the black and red will land on the double pole breaker.
2) The white neutral lands on the neutral bus bar.
3) The black hot lands on the "X" or "Y" of the receptacle. The red lands on the "X" or "Y" of the receptacle. Doesn't matter which hot lands on the "X" or "Y".
4) The white neutral lands on the "W" of the receptacle.
5) The receptacle should be a NEMA rated 10-50R, 3 prong receptacle for a range. Since you have 8 AWG conductors, the double pole breaker will be a 40 amp.
6) You will need a 3 wire cord from the range to the receptacle.
7) See the diagram shown below for the cord connection:
Black from cord lands on left side of range screw terminal. Red from cord lands on right side of range screw terminal and white neutral lands on the middle screw terminal.
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8) Since the receptacle does not contain a ground wire, you will need to jumper the green ground screw to the middle neutral screw terminal. There should be a jumper strap.
9) Since the house wires do not contain a separate equipment grounding conductor, code allows the neutral to be bonded to the dryer frame via a jumper. The metal JBox does not require a ground since no ground exists in the circuit. However, if you want to run a separate ground wire, you can use a 10 AWG Copper, Green insulated and then use a NEMA 14-50R, 4 prong receptacle and a 4 prong cord. If installing a separate ground, then the neutral is NOT bonded at the range frame. The green ground will land on the range frame green ground screw.
Reply back with any questions.