If you do a search , youll find your answer quickly.
Quick list would be :
pull out the spout (usualy hanging right below the lower intake) while the car is off
Put the timing light on it
start the car, point timing light at crank pulley, see if it lines up with 10* degree...if so , its in time.
if not, loosten on the distrubter holder and twist the dizzy until that timing mark is lined up.
turn car off, plug spout in, enjoy.
more details can be found by searching!