No spark at plugs

Sound like your electronic pick up has went south on you, pull the cap and turn the engine over with the key on and see if you have spark between the magnetic pick up in side, I am sure you are not running point's
The next thing I would check is the rotor and cap match yes they can be a wrong match , or look and make sure the rotor is in there :glasses7: yep I have dun this a few times myself :coffee2: