New Ignition coil, rotor, and distributor cap, but no spark. Need help.

The ballast resistor is the porcaline item located on the firewall on the drivers side. It will be either a 2 post or 4 post piece with male spade terminals.
http://info.rockauto.com/SMP/SMPDetail3.html?RU12.html or http://info.rockauto.com/SMP/SMPDetail3.html?RU4.html