Well, figured it out. On a while Im at it moment. My car had the 79 dist. and coil and the 77 ballast resistor. While I was trying to fix it I saw all the "add 79 dizzy etc. and they all said remove ballast, go full 12v. So I did. When I put another e12-80 on and it fired up, for a split second it sounded good, then backfiring, smoke, etc. Couldn't figure it out. Then I checked the voltage at the coil , not running 11.88 when runnnig 13.8v, oops too many volts. Put resistor back on and back in business.