I'm taking a rebuilt 302 from a 1978 ranchero and sticking it into a 73', the problem is the electrical harnesses for the distributors are different, what can i do?

 

can you take the wiring and brain box from the 78? or you can keep the point distributor from the 73, or put a pointless conversion module in the 73 dizzy, or get a complete aftermarket dizzy. crane has a new dizzy out, and they also make a module. MSD dizzy's are top of the line. mallory makes dizzy's and modules also. lots of options. if you pull the wiring out of the 78, you have to hook up to the ignition switch. duraspark uses two power supply wires to the box, a red and a white wire. one is for spark during cranking and the other is for run. can't remember which is which?