no spark please help

so im still not getting spark to the plugs. i looked at the distributor cap and it was burnt on the center so i bought a new cap and router. that didnt help still no spark so i changed out coils still nothing. tried changing the orange box and the voltage regulator still no spark. any ideas? the only thing i can think of is the magnetic pickup in the distributor. the engine is out of a 68 belvedere it is now in a 73 dart if that helps.