No Fire!

Hey guy's, 67 barracuda, has been driving fine, sat for about a week and couple days, went to start it and no fire. Pulled the coil wire at dist. and it seems I am getting no spark. 2 months ago it did this and I had to replace the ballist resistor and it worked fine. I always keep a spare one, so I install a new one and still no fire. I noticed after cranking it a couple of times, that the resistor got very warm and started to smoke. So I stopped. I noticed every one of these new resitors have the open back where you can see the resitor, seem kind of cheap. Any ideas, Thanks!