What are the correct:
1. pulley diameter and backspacing for the water pump pulley and
2. pulley diameters and number of grooves for the crank pulley
on a 318 with factory air and power steering for a 1973 Charger SE?

The shop manual has the water pump to crank ratio as 1.2:1 on an air car, but it does not specify the diameter of either pulley.

Does this car have three belts? One for the PS/water pump/crank and two for the compressor/alternator/crank?

Any pictures, too, would be greatly appreciated!

Thanks.