No spark

Coil,would be my first guess,but there are more things to know for sure,is it getting fuel?

I replaced distrib coil cap plugs rotar Wier's tested ignighter

Yes

Hello

Only ask to rule out other issue.

Have you replaced the igintion module?

Tested good

Ok two things come to mind,the igintion switch itself,or the ECM.

Could it be crank or can sensor

Could be the crank or camshaft sensor

there is a small capacitor in the distributor that could be the problem. I bought it from napa when mine went bad. use the link to get an idea of what you are looking for http://images.oreillyauto.com/parts/img/medium/idi/37- 0103_primary.jpg

The temp sensor.or computer relay behind ashtray compartment