Reversing your steps exactly, place the new alternator in position, and lower the shroud. Tighten the shroud bolts, and re-secure any wiring that was on the shroud. Slide the strap towards you, over the stand, and tighten. Replace the 4 alternator shroud bolts.
Replace the distributor and carburetor. Re-wire the automatic choke if necessary. Replace the B+ and light wires on the alternator.