The FE Motors from 67-70 With air had:
6AA Power Steering Pump inverted pulley that ran off the OUTSIDE groove (Closet to Radiator) of the Crank Pulley Belt Routing is PS Pump STRAIGHT to Crank Pulley, around it, back to PS Pump. Cradle Bracket for PS Pump will be a C7AA, Steel Support bracket from Water Pump to Power Steering Pump will standard be 67-70 FE .
The Crank Pulley will be a stamped steel 67 -70 FE 3 Groove--Something like C8OE. Early 352, 390, 427 62-66? Pulleys are different won't work.
Alternator will be a single groove straight on pulley.
Water Pump single groove--Can't recite the number.
Alternater runs off inside groove of crank, closet to motor, Around Water Pump Pulley, around Alternater, back to crank.
Air runs off middle groove of crank, WATER PUMP PULLEY NOT INVOLVED in Air Belt Routing.
This is how we set these up with air.