I forgot to mention that when you do the static timing and the ball is on the pointer with the no 1 cylinder on compression, the rotor should point at the no 1 cylinder on the distributor cap. If it's off, loosen the clamp and turn the dizzy until it does. THEN, when it starts, you can dynamically time with a light. Sorry about that. It's a little early here.
Check what SimS also said.
Mark