1974 Duster wont start

Ok, i was driving my car across town and it just quit running in middle of road. I kept trying to turn it over and it would only pop for 2 - 3 sec once every 40 cranks. Now i can not get it to even do that. I have replaced Ignition Module. and connector and it still does not start or pop. Spraying starting fluid in carb i still do not get a pop. Any suggestions???

1974 Duster
360 V8


Battery is good
Ignition coil has power.
Also there may be no spark from distributor ( can those just go out drving down the road and still let it pop a little after?)

Anything will help Thanks everyone.!!!