76 Dodge dart wont start

Great. Sounds like you used the 4-pin HEI module. I put the 8-pin HEI in my Valiant with the GM coil. For the future, get an in-line spark tester ~$5 at HF. If spark and no fire, I spray starter fluid in the intake. On newer cars, the culprit is often the electric fuel pump in the tank.