Hi there,
would need some more info the distributor to me more accurate.
1st, i'd say you are not giving the dizzy the correct voltage. It probably needs 12 volts. Do this, turn your ignition on and check the volts at the + side of the coil. its probably 8.8 volts. You need to bypass the resistor wire. Just scotchlok a wire as close to the ignition switch and firewall on the pink wire.
2nd. the wire marked tacho is to feed the tacho. which will not work with a muzzy tacho.
3rd. If your car has a factory tacho dash, then disconnect the tacho, and my first point will secure the feed from the ignition to the coil.
Without more info on your car, i am forced to believe you have the tacho dash and this creating a problem.
Starter motor.
There are 2 different starters for these. An auto and a manual.
The difference is in the pinion housing. The manual one is longer allowing the pinion gear to throw out further.
An auto starter in a manual will never engage the ring gear, whereas a manual in an auto will not disengage. (have struck this before)
Cheers
Jas