[dsraven]

start by doing a compression test. just to be sure.
check valve adjustments etc
ensure you have fresh clean fuel
pull the plugs and ensure they are all good, not cracked insulators etc and not wet or carboned up
check the heat riser valve operation
check the dizzy mechanical and vacuum advance to ensure it is working and not worn out
check for possible vacuum leaks, float settings etc all the tune up stuff first
you need to have the engine sitting so it is at tdc at the end of the compression stroke, not the exhaust stroke. to check for this take the plug out and air up the cylinder or take the valve cover off and check to see if the valves are closed.
set the dizzy up so the rotor points to the number one spark plug wire tower. that should get you close enough to try it. have a buddy crank it over while you slowly turn the dizzy and see if it fires.
fire it up and set the timing roughly. adjust the carb etc, use a vacuum gauge, reset the timing, recheck the vacuum gauge. google timing adjustment using a vacuum gauge.