So, I am trying to start a fresh rebuild on my 80. Motor turns over but I am not getting spark. Everything is brand new , HEI distributer , wires, coil, module, wiring harness, ignition switch, everything. I put inline spark tester on it and not getting spark . So, put meter on pink ignition wire that goes to distributor, and get 12v with key in run position, but as soon as turn it to start position, I lose the 12v. Any suggestions? Thanks everyone.