Strange ignition question

Hey guys and gals, I have a weird issue when starting ill try to explain as best I can. When starting my 318 duster, I can turn it over to start it and it will keep cranking with no hint of firing, but! Upon release of the cranking position to run position after turning it over, it will fire right up. I've never had this issue with any other mopar before. Usually I could here it firing off while cranking, but not on this one. This starts on the release of the cranking position. This is very very strange and wondering if anyone has experienced anything similar. I have installed a new ignition previously, so wondering if a wire or 2 are backwards?? Kinda perplexed here. Any thoughts? Thanks.