Why not cook marshmallows on my under dash fire?

ok if you are getting power at both sides of the coil then the (-) wire is wired to the wrong place....

one wire of the coil goes to the ballast resistor, the other wire goes to the ECU

if you dont have an ECU, but had one before, then you need to get the wiring diagram from a points car and wire it that way. pretty sure that - wire that went to the ecu now goes to the dizzy. but again (again) get the wiring diagram from mymopar.org

http://www.mymopar.com/downloads/1970/70DartA.JPG

http://www.mymopar.com/index.php?pid=27