1974 Dodge Monaco Ignition System Problem

I have a 1974 Dodge Monaco with a 400 big block. I am not getting any spark from the coil. The way I have it hooked up is the high voltage wire to positive and the other wire to negative. I also have a condenser that attaches to positive as well. I have already replaced the coil and put a new one in. Please inform me of what else it could potentially be.

Thanks,
James Hi:

You may want to check the ballast-resistor. This could be bad. Chrylser's are nitorious for having these rrsistors going bad. The resistor looks like a long rectangular white ceramic box. It's not very big